diff --git a/win_text_editor/lib/modules/pdf_parse/services/excel_deal_service.dart b/win_text_editor/lib/modules/pdf_parse/services/excel_deal_service.dart
index f2e9c48..e79d819 100644
--- a/win_text_editor/lib/modules/pdf_parse/services/excel_deal_service.dart
+++ b/win_text_editor/lib/modules/pdf_parse/services/excel_deal_service.dart
@@ -6,11 +6,55 @@ import 'package:win_text_editor/app/providers/logger.dart';
 
 class ExcelDealService {
   static const String _logTag = 'ExcelDealService';
+  static const Map<int, String> _columnTitles = {
+    4: '日',
+    5: '月',
+    6: '水',
+    7: '金',
+    8: '火',
+    9: '木',
+    10: '土',
+    11: '天',
+    12: '海',
+    13: '冥',
+    14: '南',
+    15: '北',
+    16: '孛',
+    17: '凯',
+  };
+
+  static const List<Set<String>> harmonyGroups = [
+    {'寅', '午', '戌'}, // 寅午戌合
+    {'亥', '卯', '未'}, // 亥卯未合
+    {'申', '子', '辰'}, // 申子辰合
+    {'巳', '酉', '丑'}, // 巳酉丑合
+  ];
+
+  static const List<Set<String>> conflictGroups = [
+    {'子', '午'}, // 子午冲
+    {'丑', '未'}, // 丑未冲
+    {'寅', '申'}, // 寅申冲
+    {'卯', '酉'}, // 卯酉冲
+    {'辰', '戌'}, // 辰戌冲
+    {'巳', '亥'}, // 巳亥冲
+  ];
+
+  static const List<Set<String>> punishmentGroups = [
+    {'子', '卯'}, // 子卯刑
+    {'子', '酉'}, // 子酉刑
+    {'午', '酉'}, // 午酉刑
+    {'午', '卯'}, // 午卯刑
+    {'寅', '亥'}, // 寅亥刑
+    {'巳', '申'}, // 巳申刑
+    {'丑', '辰'}, // 丑辰刑
+    {'寅', '巳', '申'}, // 寅巳申刑
+    {'未', '戌', '丑'}, // 未戌丑刑
+  ];
 
   Future<void> exportToExcel(String processedContent, {String? fileName}) async {
     try {
       final excel = Excel.createExcel();
-      final sheet = excel['Sheet1']!;
+      final sheet = excel['Sheet1'];
 
       final lines = processedContent.split('\n');
       bool isHeaderProcessed = false;
@@ -51,27 +95,20 @@ class ExcelDealService {
           final cell = sheet.cell(CellIndex.indexByColumnRow(columnIndex: col, rowIndex: rowIndex));
           cell.value = TextCellValue(cellValue);
 
-          // 如果是标题行之后的数据行，添加三列空数据
-          if (isHeaderProcessed && col == cells.length - 1) {
-            for (int i = 0; i < 3; i++) {
-              sheet
-                  .cell(
-                    CellIndex.indexByColumnRow(columnIndex: cells.length + i, rowIndex: rowIndex),
-                  )
-                  .value = TextCellValue('');
-            }
-          }
-
           // 应用红色格式到7-14列(索引6-13)
           if (col >= 6 && col <= 13) {
             _applyConditionalFormatting(cell, cellValue);
           }
         }
+
+        // 如果是数据行且已处理过标题行，计算关系
+        if (isHeaderProcessed && rowIndex > 0) {
+          _calculateRelationships(sheet, rowIndex, cells);
+        }
       }
 
       // 设置列宽
       for (var i = 1; i < 18; i++) {
-        // 增加列宽设置范围以包含新列
         sheet.setColumnWidth(i, 8.0);
       }
 
@@ -98,20 +135,179 @@ class ExcelDealService {
     }
   }
 
+  void _calculateRelationships(Sheet sheet, int rowIndex, List<String> cells) {
+    final List<CellData> validCells = [];
+
+    // 1. Extract valid cells (columns 5-18, excluding 15-16) with degree, zodiac and minute
+    for (int col = 4; col <= 17; col++) {
+      if (col == 14 || col == 15) continue; // Skip South/North columns
+
+      if (col < cells.length) {
+        final data = _parseCellData(cells[col]);
+        if (data != null && data.isValid()) {
+          validCells.add(data..columnIndex = col);
+        }
+      }
+    }
+
+    final List<String> heRelations = []; // 合关系
+    final List<String> chongRelations = []; // 冲关系
+    final List<String> xingRelations = []; // 刑关系
+
+    // 2. Compare all valid cells pairwise
+    for (int i = 0; i < validCells.length; i++) {
+      for (int j = i + 1; j < validCells.length; j++) {
+        final cell1 = validCells[i];
+        final cell2 = validCells[j];
+
+        // Get column titles
+        final title1 = _columnTitles[cell1.columnIndex] ?? '';
+        final title2 = _columnTitles[cell2.columnIndex] ?? '';
+
+        // Check for harmony (合)
+        if (_isHarmony(cell1, cell2)) {
+          heRelations.add('$title1$title2合');
+        }
+
+        // Check for conflict (冲)
+        if (_isConflict(cell1.zodiac, cell2.zodiac)) {
+          chongRelations.add('$title1$title2冲');
+        }
+
+        // Check for punishment (刑)
+        if (_isPunishment(cell1.zodiac, cell2.zodiac)) {
+          xingRelations.add('$title1$title2刑');
+        }
+      }
+    }
+
+    // 3. 写入关系列 (第19-21列)
+    if (heRelations.isNotEmpty) {
+      sheet
+          .cell(CellIndex.indexByColumnRow(columnIndex: cells.length, rowIndex: rowIndex))
+          .value = TextCellValue(heRelations.join(' '));
+    }
+    if (chongRelations.isNotEmpty) {
+      sheet
+          .cell(CellIndex.indexByColumnRow(columnIndex: cells.length + 1, rowIndex: rowIndex))
+          .value = TextCellValue(chongRelations.join(' '));
+    }
+    if (xingRelations.isNotEmpty) {
+      sheet
+          .cell(CellIndex.indexByColumnRow(columnIndex: cells.length + 2, rowIndex: rowIndex))
+          .value = TextCellValue(xingRelations.join(' '));
+    }
+  }
+
+  CellData? _parseCellData(String cellValue) {
+    // 支持两种格式：
+    // 1. 度地支分（如"12酉34"）
+    // 2. 度地支分'秒（如"10丑48'49"或"11°50'00"）
+
+    final match = RegExp(
+      r"^(\d+)([^\d\s°\']+)(\d+)(?:[\'](\d{1,2}))?$",
+    ).firstMatch(cellValue.trim());
+    if (match == null) return null;
+
+    final degreeStr = match.group(1);
+    final zodiac = match.group(2);
+    final minuteStr = match.group(3);
+    final secondStr = match.group(4); // 可能为null
+
+    if (degreeStr == null || zodiac == null || minuteStr == null) return null;
+
+    // 转换度分秒为double类型的度
+    final degree = double.tryParse(degreeStr);
+    final minute = double.tryParse(minuteStr);
+    final second = secondStr != null ? double.tryParse(secondStr) : 0.0;
+
+    if (degree == null || minute == null) return null;
+
+    // 将秒转换为分钟的小数部分（60秒=1分钟）
+    final totalMinutes = minute + (second ?? 0) / 60;
+
+    return CellData(degree: degree, zodiac: zodiac, minute: totalMinutes);
+  }
+
+  bool _isHarmony(CellData cell1, CellData cell2) {
+    // 排除相同地支
+    if (cell1.zodiac == cell2.zodiac) return false;
+
+    // 1. 先检查度数差是否在1度以内
+    final totalDiff = (cell1.totalMinutes - cell2.totalMinutes).abs();
+    final isDegreeMatch = totalDiff <= 60;
+    if (isDegreeMatch) {
+      // 如果度数差在1度以内，直接返回true
+      return true;
+    }
+
+    // 2. 检查地支是否在合局中r
+    var isZodiacMatch = false;
+    for (final group in harmonyGroups) {
+      if (group.contains(cell1.zodiac) && group.contains(cell2.zodiac)) {
+        isZodiacMatch = true;
+        break;
+      }
+    }
+
+    // 两种条件满足其一即可
+    return isDegreeMatch || isZodiacMatch;
+  }
+
+  bool _isConflict(String zodiac1, String zodiac2) {
+    // 排除相同地支
+    if (zodiac1 == zodiac2) return false;
+
+    for (final group in conflictGroups) {
+      if (group.contains(zodiac1) && group.contains(zodiac2)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
+  bool _isPunishment(String zodiac1, String zodiac2) {
+    // 排除相同地支
+    if (zodiac1 == zodiac2) return false;
+
+    for (final group in punishmentGroups) {
+      if (group.contains(zodiac1) && group.contains(zodiac2)) {
+        return true;
+      }
+    }
+    return false;
+  }
+
   // 跟踪每列的红色区域状态
   final List<bool> _columnRedStates = List.filled(14, false);
 
   void _applyConditionalFormatting(Data cell, String value) {
-    // 根据标记更新状态
     if (value.contains('R')) {
       _columnRedStates[cell.cellIndex.columnIndex] = true;
     } else if (value.contains('D')) {
       _columnRedStates[cell.cellIndex.columnIndex] = false;
     }
 
-    // 在红色区域应用红色
     if (_columnRedStates[cell.cellIndex.columnIndex]) {
       cell.cellStyle = CellStyle(fontColorHex: ExcelColor.red);
     }
   }
 }
+
+class CellData {
+  final double? degree;
+  final String zodiac;
+  final double? minute;
+  int columnIndex = -1;
+
+  // 定义有效的地支集合
+  static const validZodiacs = {'亥', '戌', '酉', '申', '未', '午', '巳', '辰', '卯', '寅', '丑', '子'};
+
+  CellData({this.degree, required this.zodiac, this.minute});
+
+  bool isValid() {
+    return degree != null && minute != null && validZodiacs.contains(zodiac);
+  }
+
+  double get totalMinutes => (degree ?? 0) * 60 + (minute ?? 0);
+}