diff --git a/Cardiopulmonarybypasssystems/App.xaml.cs b/Cardiopulmonarybypasssystems/App.xaml.cs
index c12de06..783d899 100644
--- a/Cardiopulmonarybypasssystems/App.xaml.cs
+++ b/Cardiopulmonarybypasssystems/App.xaml.cs
@@ -2,6 +2,7 @@ using System.Windows;
 using Cardiopulmonarybypasssystems.Services;
 using Cardiopulmonarybypasssystems.ViewModels;
 using Microsoft.Extensions.DependencyInjection;
+using OfficeOpenXml;
 using QuestPDF.Infrastructure;
 
 namespace Cardiopulmonarybypasssystems;
@@ -13,6 +14,7 @@ public partial class App : Application
     protected override void OnStartup(StartupEventArgs e)
     {
         base.OnStartup(e);
+        ExcelPackage.LicenseContext = LicenseContext.NonCommercial;
         QuestPDF.Settings.License = LicenseType.Community;
 
         var services = new ServiceCollection();
diff --git a/Cardiopulmonarybypasssystems/Cardiopulmonarybypasssystems.csproj b/Cardiopulmonarybypasssystems/Cardiopulmonarybypasssystems.csproj
index a9b555c..6b3547d 100644
--- a/Cardiopulmonarybypasssystems/Cardiopulmonarybypasssystems.csproj
+++ b/Cardiopulmonarybypasssystems/Cardiopulmonarybypasssystems.csproj
@@ -12,6 +12,7 @@
 
   <ItemGroup>
     <PackageReference Include="CommunityToolkit.Mvvm" Version="8.4.0" />
+    <PackageReference Include="EPPlus" Version="7.5.0" />
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="8.0.1" />
     <PackageReference Include="NModbus" Version="3.0.81" />
     <PackageReference Include="QuestPDF" Version="2024.12.1" />
diff --git a/Cardiopulmonarybypasssystems/Services/ExcelReportDocument.cs b/Cardiopulmonarybypasssystems/Services/ExcelReportDocument.cs
new file mode 100644
index 0000000..7b8a2e1
--- /dev/null
+++ b/Cardiopulmonarybypasssystems/Services/ExcelReportDocument.cs
@@ -0,0 +1,435 @@
+using System.IO;
+using System.Drawing;
+using Cardiopulmonarybypasssystems.Models;
+using OfficeOpenXml;
+using OfficeOpenXml.Style;
+
+namespace Cardiopulmonarybypasssystems.Services;
+
+public sealed class ExcelReportDocument(
+    string pageTitle,
+    string batchNumber,
+    string currentStage,
+    string operatorName,
+    string reviewerName,
+    string approverName,
+    string complianceDisplay,
+    string deltaPressureDisplay,
+    string detectionSummary,
+    string configurationSummary,
+    DateTime exportTime,
+    IReadOnlyCollection<InspectionItem> inspectionItems,
+    IReadOnlyCollection<TraceEvent> traceEvents,
+    IReadOnlyCollection<KinkResistancePointEntry> kinkResistanceEntries,
+    string kinkResistanceFlowPointDisplay,
+    string kinkResistanceMandrelDiameterDisplay,
+    IReadOnlyCollection<PressureDropPointEntry> pressureDropEntries,
+    string pressureDropLimitDisplay,
+    string antiCollapseBaselineDisplay,
+    string antiCollapseComparisonDisplay,
+    string antiCollapseCurrentNegativePressure,
+    string antiCollapseCurrentFlowDisplay,
+    string antiCollapseAllowedIncreaseRateDisplay,
+    IReadOnlyCollection<RecirculationPointEntry> recirculationEntries,
+    string recirculationLimitDisplay)
+{
+    private const int TotalColumns = 10;
+    private static readonly Color BorderColor = ColorTranslator.FromHtml("#A0AEC0");
+    private static readonly Color SectionFillColor = ColorTranslator.FromHtml("#DDEFEA");
+    private static readonly Color HeaderFillColor = ColorTranslator.FromHtml("#CFE8E3");
+    private static readonly Color SummaryFillColor = ColorTranslator.FromHtml("#D9F3EE");
+    private static readonly Color MetaLabelFillColor = ColorTranslator.FromHtml("#F7FAFC");
+    private static readonly Color MetaLabelFontColor = ColorTranslator.FromHtml("#4A5568");
+
+    public void GenerateExcel(string filePath)
+    {
+        ExcelPackage.LicenseContext = LicenseContext.NonCommercial;
+
+        using var package = new ExcelPackage();
+        var worksheet = package.Workbook.Worksheets.Add("检查报告");
+        package.Workbook.Properties.Title = pageTitle;
+
+        ConfigureWorksheet(worksheet);
+
+        var row = 1;
+        row = ComposeTitle(worksheet, row);
+        row = ComposeMeta(worksheet, row + 2);
+        row = ComposeSummary(worksheet, row + 2);
+        row = ComposeKinkResistanceSection(worksheet, row + 2);
+        row = ComposePressureDropSection(worksheet, row + 2);
+        row = ComposeAntiCollapseSection(worksheet, row + 2);
+        row = ComposeRecirculationSection(worksheet, row + 2);
+        row = ComposeInspectionTable(worksheet, row + 2);
+        row = ComposeTraceEvents(worksheet, row + 2);
+        ComposeSignatures(worksheet, row + 2);
+
+        package.SaveAs(new FileInfo(filePath));
+    }
+
+    private static void ConfigureWorksheet(ExcelWorksheet worksheet)
+    {
+        worksheet.View.ShowGridLines = false;
+        worksheet.PrinterSettings.Orientation = eOrientation.Landscape;
+        worksheet.PrinterSettings.PaperSize = ePaperSize.A4;
+        worksheet.PrinterSettings.FitToPage = true;
+        worksheet.PrinterSettings.FitToWidth = 1;
+        worksheet.PrinterSettings.FitToHeight = 0;
+        worksheet.PrinterSettings.LeftMargin = 0.35m;
+        worksheet.PrinterSettings.RightMargin = 0.35m;
+        worksheet.PrinterSettings.TopMargin = 0.4m;
+        worksheet.PrinterSettings.BottomMargin = 0.4m;
+        worksheet.Cells.Style.Font.Name = "Microsoft YaHei";
+        worksheet.Cells.Style.Font.Size = 9;
+        worksheet.Cells.Style.WrapText = true;
+        worksheet.Cells.Style.VerticalAlignment = ExcelVerticalAlignment.Top;
+
+        var widths = new[] { 12d, 14d, 22d, 24d, 20d, 16d, 10d, 12d, 16d, 18d };
+        for (var index = 0; index < widths.Length; index++)
+        {
+            worksheet.Column(index + 1).Width = widths[index];
+        }
+    }
+
+    private int ComposeTitle(ExcelWorksheet worksheet, int row)
+    {
+        var range = worksheet.Cells[row, 1, row, TotalColumns];
+        range.Merge = true;
+        range.Value = ValueOrFallback(pageTitle);
+        range.Style.Font.Size = 18;
+        range.Style.Font.Bold = true;
+        range.Style.Font.Color.SetColor(ColorTranslator.FromHtml("#0F766E"));
+        range.Style.HorizontalAlignment = ExcelHorizontalAlignment.Left;
+        worksheet.Row(row).Height = 26;
+        return row;
+    }
+
+    private int ComposeMeta(ExcelWorksheet worksheet, int startRow)
+    {
+        var items = new (string Label, string Value, int ColStart, int ColEnd)[]
+        {
+            ("批次", batchNumber, 1, 2),
+            ("阶段", currentStage, 3, 4),
+            ("测试员", operatorName, 5, 6),
+            ("复核人", reviewerName, 7, 8),
+            ("批准人", approverName, 1, 2),
+            ("导出时间", exportTime.ToString("yyyy-MM-dd HH:mm:ss"), 3, 4),
+            ("合格率", complianceDisplay, 5, 6),
+            ("压差", deltaPressureDisplay, 7, 8)
+        };
+
+        for (var index = 0; index < items.Length; index++)
+        {
+            var rowOffset = index < 4 ? 0 : 2;
+            WriteMetaCell(
+                worksheet,
+                startRow + rowOffset,
+                startRow + rowOffset + 1,
+                items[index].ColStart,
+                items[index].ColEnd,
+                items[index].Label,
+                items[index].Value);
+        }
+
+        return startRow + 3;
+    }
+
+    private int ComposeSummary(ExcelWorksheet worksheet, int startRow)
+    {
+        var titleRange = worksheet.Cells[startRow, 1, startRow, TotalColumns];
+        titleRange.Merge = true;
+        titleRange.Value = "检测结论";
+        titleRange.Style.Font.Bold = true;
+        titleRange.Style.Font.Size = 11;
+        titleRange.Style.Fill.PatternType = ExcelFillStyle.Solid;
+        titleRange.Style.Fill.BackgroundColor.SetColor(SummaryFillColor);
+        ApplyBorder(titleRange);
+
+        var summaryRange = worksheet.Cells[startRow + 1, 1, startRow + 1, TotalColumns];
+        summaryRange.Merge = true;
+        summaryRange.Value = ValueOrFallback(detectionSummary);
+        ApplyBodyCell(summaryRange);
+
+        var configRange = worksheet.Cells[startRow + 2, 1, startRow + 2, TotalColumns];
+        configRange.Merge = true;
+        configRange.Value = $"产品配置：{ValueOrFallback(configurationSummary)}";
+        ApplyBodyCell(configRange);
+
+        return startRow + 2;
+    }
+
+    private int ComposeKinkResistanceSection(ExcelWorksheet worksheet, int startRow)
+    {
+        var row = WriteSectionTitle(worksheet, startRow, "专项记录：抗扭结抗性");
+        row = WriteMergedBodyRow(worksheet, row + 1, kinkResistanceFlowPointDisplay);
+        row = WriteMergedBodyRow(worksheet, row + 1, kinkResistanceMandrelDiameterDisplay);
+
+        var headers = new[] { "流量点", "目标流量", "L0", "L1", "降幅", "L0时间", "L1时间" };
+        var rows = kinkResistanceEntries.Select(entry => new[]
+        {
+            entry.Label,
+            $"{entry.TargetFlow:F2} L/min",
+            entry.HasBaseline ? $"{entry.BaselineFlow:F2} L/min" : "-",
+            entry.HasKinked ? $"{entry.KinkedFlow:F2} L/min" : "-",
+            entry.FlowDropRateText,
+            entry.BaselineCapturedAtText,
+            entry.KinkedCapturedAtText
+        });
+
+        return WriteTable(worksheet, row + 1, headers, rows);
+    }
+
+    private int ComposePressureDropSection(ExcelWorksheet worksheet, int startRow)
+    {
+        var row = WriteSectionTitle(worksheet, startRow, "专项记录：压力降");
+        row = WriteMergedBodyRow(worksheet, row + 1, $"声明限值：{pressureDropLimitDisplay}");
+
+        var headers = new[] { "流量点", "目标流量", "实际主泵", "近端压力", "远端压力", "ΔP" };
+        var rows = pressureDropEntries
+            .OrderBy(item => item.TargetFlow)
+            .Select(entry => new[]
+            {
+                entry.Label,
+                $"{entry.TargetFlow:F2} L/min",
+                entry.HasSample ? $"{entry.ActualPumpFlow:F2} L/min" : "-",
+                entry.HasSample ? $"{entry.ProximalPressure:F1} mmHg" : "-",
+                entry.HasSample ? $"{entry.DistalPressure:F1} mmHg" : "-",
+                entry.HasSample ? $"{entry.DeltaPressure:F1} mmHg" : "-"
+            });
+
+        return WriteTable(worksheet, row + 1, headers, rows);
+    }
+
+    private int ComposeAntiCollapseSection(ExcelWorksheet worksheet, int startRow)
+    {
+        var row = WriteSectionTitle(worksheet, startRow, "专项记录：抗塌陷");
+        var entries = new (string Label, string Value)[]
+        {
+            ("基线", antiCollapseBaselineDisplay),
+            ("允许增幅", antiCollapseAllowedIncreaseRateDisplay),
+            ("负压状态", antiCollapseCurrentNegativePressure),
+            ("当前流量", antiCollapseCurrentFlowDisplay),
+            ("比较结果", antiCollapseComparisonDisplay)
+        };
+
+        foreach (var entry in entries)
+        {
+            row++;
+            WriteKeyValueRow(worksheet, row, entry.Label, entry.Value);
+        }
+
+        return row;
+    }
+
+    private int ComposeRecirculationSection(ExcelWorksheet worksheet, int startRow)
+    {
+        var row = WriteSectionTitle(worksheet, startRow, "专项记录：再循环");
+        row = WriteMergedBodyRow(worksheet, row + 1, recirculationLimitDisplay);
+
+        var headers = new[] { "流量点", "目标流量", "实际主泵", "C1(D)", "C2(C)", "R%", "在线参考", "时间" };
+        var rows = recirculationEntries
+            .OrderBy(item => item.TargetFlow)
+            .Select(entry => new[]
+            {
+                entry.Label,
+                $"{entry.TargetFlow:F2} L/min",
+                entry.HasSample ? $"{entry.ActualPumpFlow:F2} L/min" : "-",
+                entry.ConcentrationC1?.ToString("F0") ?? "-",
+                entry.ConcentrationC2?.ToString("F0") ?? "-",
+                entry.RecirculationResultText,
+                entry.HasSample ? $"{entry.OnlineEstimate:F1}%" : "-",
+                entry.SampledAtText
+            });
+
+        return WriteTable(worksheet, row + 1, headers, rows);
+    }
+
+    private int ComposeInspectionTable(ExcelWorksheet worksheet, int startRow)
+    {
+        var row = WriteSectionTitle(worksheet, startRow, "项目记录");
+        var headers = new[] { "类别", "测试内容", "判定要求", "检测方法", "记录要点", "结果", "状态", "记录人", "记录时间", "备注" };
+        var rows = inspectionItems.Select(item => new[]
+        {
+            item.Category,
+            item.Item,
+            item.AcceptanceCriteria,
+            item.TestMethod,
+            item.RecordFocus,
+            item.Measured,
+            item.StatusText,
+            item.RecordedBy,
+            item.RecordedAtText,
+            item.Notes
+        });
+
+        return WriteTable(worksheet, row + 1, headers, rows);
+    }
+
+    private int ComposeTraceEvents(ExcelWorksheet worksheet, int startRow)
+    {
+        var row = WriteSectionTitle(worksheet, startRow, "追溯事件");
+        var orderedTraceEvents = traceEvents.OrderBy(item => item.Timestamp).ToList();
+
+        if (orderedTraceEvents.Count == 0)
+        {
+            return WriteMergedBodyRow(worksheet, row + 1, "-");
+        }
+
+        foreach (var trace in orderedTraceEvents)
+        {
+            row++;
+            var range = worksheet.Cells[row, 1, row, TotalColumns];
+            range.Merge = true;
+            range.Value = $"{trace.Timestamp:yyyy-MM-dd HH:mm:ss}  {ValueOrFallback(trace.Stage)}  {ValueOrFallback(trace.Detail)}  ({ValueOrFallback(trace.Operator)})";
+            range.Style.Border.Bottom.Style = ExcelBorderStyle.Thin;
+            range.Style.Border.Bottom.Color.SetColor(ColorTranslator.FromHtml("#CBD5E0"));
+            range.Style.HorizontalAlignment = ExcelHorizontalAlignment.Left;
+            range.Style.VerticalAlignment = ExcelVerticalAlignment.Top;
+        }
+
+        return row;
+    }
+
+    private void ComposeSignatures(ExcelWorksheet worksheet, int startRow)
+    {
+        WriteSignatureCell(worksheet, startRow, 1, 3, "测试员", operatorName);
+        WriteSignatureCell(worksheet, startRow, 4, 6, "复核人", reviewerName);
+        WriteSignatureCell(worksheet, startRow, 7, 10, "批准人", approverName);
+    }
+
+    private static void WriteMetaCell(
+        ExcelWorksheet worksheet,
+        int labelRow,
+        int valueRow,
+        int startColumn,
+        int endColumn,
+        string label,
+        string value)
+    {
+        var labelRange = worksheet.Cells[labelRow, startColumn, labelRow, endColumn];
+        labelRange.Merge = true;
+        labelRange.Value = label;
+        labelRange.Style.Font.Size = 8;
+        labelRange.Style.Font.Color.SetColor(MetaLabelFontColor);
+        labelRange.Style.Fill.PatternType = ExcelFillStyle.Solid;
+        labelRange.Style.Fill.BackgroundColor.SetColor(MetaLabelFillColor);
+        ApplyBorder(labelRange);
+
+        var valueRange = worksheet.Cells[valueRow, startColumn, valueRow, endColumn];
+        valueRange.Merge = true;
+        valueRange.Value = ValueOrFallback(value);
+        valueRange.Style.Font.Bold = true;
+        ApplyBodyCell(valueRange);
+    }
+
+    private static int WriteSectionTitle(ExcelWorksheet worksheet, int row, string title)
+    {
+        var range = worksheet.Cells[row, 1, row, TotalColumns];
+        range.Merge = true;
+        range.Value = title;
+        range.Style.Font.Bold = true;
+        range.Style.Font.Size = 11;
+        range.Style.Fill.PatternType = ExcelFillStyle.Solid;
+        range.Style.Fill.BackgroundColor.SetColor(SectionFillColor);
+        ApplyBorder(range);
+        return row;
+    }
+
+    private static int WriteMergedBodyRow(ExcelWorksheet worksheet, int row, string value)
+    {
+        var range = worksheet.Cells[row, 1, row, TotalColumns];
+        range.Merge = true;
+        range.Value = ValueOrFallback(value);
+        ApplyBodyCell(range);
+        return row;
+    }
+
+    private static void WriteKeyValueRow(ExcelWorksheet worksheet, int row, string label, string value)
+    {
+        var labelRange = worksheet.Cells[row, 1, row, 2];
+        labelRange.Merge = true;
+        labelRange.Value = label;
+        labelRange.Style.Font.Bold = true;
+        labelRange.Style.Fill.PatternType = ExcelFillStyle.Solid;
+        labelRange.Style.Fill.BackgroundColor.SetColor(HeaderFillColor);
+        ApplyBorder(labelRange);
+
+        var valueRange = worksheet.Cells[row, 3, row, TotalColumns];
+        valueRange.Merge = true;
+        valueRange.Value = ValueOrFallback(value);
+        ApplyBodyCell(valueRange);
+    }
+
+    private static int WriteTable(
+        ExcelWorksheet worksheet,
+        int startRow,
+        IReadOnlyList<string> headers,
+        IEnumerable<string[]> rows)
+    {
+        for (var index = 0; index < headers.Count; index++)
+        {
+            var cell = worksheet.Cells[startRow, index + 1];
+            cell.Value = headers[index];
+            cell.Style.Font.Bold = true;
+            cell.Style.Fill.PatternType = ExcelFillStyle.Solid;
+            cell.Style.Fill.BackgroundColor.SetColor(HeaderFillColor);
+            cell.Style.HorizontalAlignment = ExcelHorizontalAlignment.Center;
+            cell.Style.VerticalAlignment = ExcelVerticalAlignment.Center;
+            ApplyBorder(cell);
+        }
+
+        var currentRow = startRow;
+        foreach (var row in rows)
+        {
+            currentRow++;
+            for (var index = 0; index < headers.Count; index++)
+            {
+                var cell = worksheet.Cells[currentRow, index + 1];
+                cell.Value = ValueOrFallback(row[index]);
+                ApplyBodyCell(cell);
+            }
+        }
+
+        return currentRow;
+    }
+
+    private static void WriteSignatureCell(
+        ExcelWorksheet worksheet,
+        int startRow,
+        int startColumn,
+        int endColumn,
+        string label,
+        string value)
+    {
+        var lineRange = worksheet.Cells[startRow, startColumn, startRow, endColumn];
+        lineRange.Merge = true;
+        lineRange.Style.Border.Top.Style = ExcelBorderStyle.Thin;
+        lineRange.Style.Border.Top.Color.SetColor(Color.Black);
+
+        var textRange = worksheet.Cells[startRow + 1, startColumn, startRow + 1, endColumn];
+        textRange.Merge = true;
+        textRange.Value = $"{label}：{ValueOrFallback(value)}";
+        textRange.Style.HorizontalAlignment = ExcelHorizontalAlignment.Left;
+    }
+
+    private static void ApplyBodyCell(ExcelRange range)
+    {
+        range.Style.HorizontalAlignment = ExcelHorizontalAlignment.Left;
+        range.Style.VerticalAlignment = ExcelVerticalAlignment.Top;
+        ApplyBorder(range);
+    }
+
+    private static void ApplyBorder(ExcelRange range)
+    {
+        range.Style.Border.Top.Style = ExcelBorderStyle.Thin;
+        range.Style.Border.Bottom.Style = ExcelBorderStyle.Thin;
+        range.Style.Border.Left.Style = ExcelBorderStyle.Thin;
+        range.Style.Border.Right.Style = ExcelBorderStyle.Thin;
+        range.Style.Border.Top.Color.SetColor(BorderColor);
+        range.Style.Border.Bottom.Color.SetColor(BorderColor);
+        range.Style.Border.Left.Color.SetColor(BorderColor);
+        range.Style.Border.Right.Color.SetColor(BorderColor);
+    }
+
+    private static string ValueOrFallback(string? value) =>
+        string.IsNullOrWhiteSpace(value) ? "-" : value.Trim();
+}
diff --git a/Cardiopulmonarybypasssystems/ViewModels/MainViewModel.cs b/Cardiopulmonarybypasssystems/ViewModels/MainViewModel.cs
index dd3fc4c..44d0ce0 100644
--- a/Cardiopulmonarybypasssystems/ViewModels/MainViewModel.cs
+++ b/Cardiopulmonarybypasssystems/ViewModels/MainViewModel.cs
@@ -856,6 +856,58 @@ public partial class MainViewModel : ObservableObject, IDisposable
 
     [RelayCommand]
     private void ExportReport()
+    {
+        ExportReportExcel();
+    }
+
+    private void ExportReportExcel()
+    {
+        var outputDirectory = ResolveReportOutputDirectory();
+        var timestamp = DateTime.Now.ToString("yyyyMMdd-HHmmss");
+        var batchToken = string.IsNullOrWhiteSpace(BatchNumber) ? "未填写批号" : SanitizeFileNameSegment(BatchNumber.Trim());
+        var excelPath = Path.Combine(outputDirectory, $"检查报告-{batchToken}-{timestamp}.xlsx");
+
+        try
+        {
+            var document = new ExcelReportDocument(
+                pageTitle: PageTitle,
+                batchNumber: BatchNumber,
+                currentStage: CurrentStage,
+                operatorName: OperatorName,
+                reviewerName: ReviewerName,
+                approverName: ApproverName,
+                complianceDisplay: ComplianceDisplay,
+                deltaPressureDisplay: DeltaPressureDisplay,
+                detectionSummary: DetectionSummary,
+                configurationSummary: ConfigurationSummary,
+                exportTime: DateTime.Now,
+                inspectionItems: InspectionItems.ToList(),
+                traceEvents: TraceEvents.ToList(),
+                kinkResistanceEntries: KinkResistanceEntries.ToList(),
+                kinkResistanceFlowPointDisplay: KinkResistanceFlowPointDisplay,
+                kinkResistanceMandrelDiameterDisplay: KinkResistanceMandrelDiameterDisplay,
+                pressureDropEntries: PressureDropEntries.ToList(),
+                pressureDropLimitDisplay: PressureDropLimitDisplay,
+                antiCollapseBaselineDisplay: AntiCollapseBaselineDisplay,
+                antiCollapseComparisonDisplay: AntiCollapseComparisonDisplay,
+                antiCollapseCurrentNegativePressure: NegativeAssistPressureDisplay,
+                antiCollapseCurrentFlowDisplay: PumpFlowDisplay,
+                antiCollapseAllowedIncreaseRateDisplay: $"{AntiCollapseAllowedIncreaseRate:F1}%",
+                recirculationEntries: RecirculationEntries.ToList(),
+                recirculationLimitDisplay: RecirculationLimitDisplay);
+
+            document.GenerateExcel(excelPath);
+            LatestAction = $"已导出检查报告: {excelPath}";
+            TraceEvents.Insert(0, NewTrace("检查报告导出", Path.GetFileName(excelPath)));
+        }
+        catch (Exception ex)
+        {
+            LatestAction = $"检查报告导出失败: {ex.Message}";
+            TraceEvents.Insert(0, NewTrace("检查报告导出失败", ex.Message));
+        }
+    }
+
+    private void ExportReportPdf()
     {
         var outputDirectory = ResolveReportOutputDirectory();
         var timestamp = DateTime.Now.ToString("yyyyMMdd-HHmmss");