diff --git a/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/handler/OneToManyMergeStrategy.java b/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/handler/OneToManyMergeStrategy.java
new file mode 100644
index 0000000000000000000000000000000000000000..05acf6c514431f2b6e5c4bf771132c49eddf4da0
--- /dev/null
+++ b/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/handler/OneToManyMergeStrategy.java
@@ -0,0 +1,127 @@
+package org.dromara.common.excel.handler;
+
+import cn.hutool.core.util.ObjectUtil;
+import cn.idev.excel.metadata.Head;
+import cn.idev.excel.metadata.data.WriteCellData;
+import cn.idev.excel.write.handler.CellWriteHandler;
+import cn.idev.excel.write.handler.context.CellWriteHandlerContext;
+import cn.idev.excel.write.metadata.holder.WriteSheetHolder;
+import cn.idev.excel.write.metadata.holder.WriteTableHolder;
+import org.apache.poi.ss.usermodel.Cell;
+import org.apache.poi.ss.usermodel.CellType;
+import org.apache.poi.ss.usermodel.Row;
+import org.apache.poi.ss.usermodel.Sheet;
+import org.apache.poi.ss.util.CellRangeAddress;
+
+import java.util.List;
+
+/**
+ * 一对多数据合并策略
+ * @author 描述不符
+ */
+public class OneToManyMergeStrategy implements CellWriteHandler {
+
+    /**
+     * 判断是否合并的字段
+     */
+    private String mergeFieldName;
+
+    /**
+     * 待合并列index
+     */
+    private List<Integer> mergeColumnIndexList;
+
+
+    public OneToManyMergeStrategy(String mergeFieldName, List<Integer> mergeColumnIndexList) {
+        this.mergeFieldName = mergeFieldName;
+        this.mergeColumnIndexList = mergeColumnIndexList;
+    }
+
+    @Override
+    public void beforeCellCreate(CellWriteHandlerContext context) {
+        CellWriteHandler.super.beforeCellCreate(context);
+    }
+
+    @Override
+    public void beforeCellCreate(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, Row row, Head head, Integer columnIndex, Integer relativeRowIndex, Boolean isHead) {
+        CellWriteHandler.super.beforeCellCreate(writeSheetHolder, writeTableHolder, row, head, columnIndex, relativeRowIndex, isHead);
+    }
+
+    @Override
+    public void afterCellCreate(CellWriteHandlerContext context) {
+        CellWriteHandler.super.afterCellCreate(context);
+    }
+
+    @Override
+    public void afterCellCreate(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, Cell cell, Head head, Integer relativeRowIndex, Boolean isHead) {
+        CellWriteHandler.super.afterCellCreate(writeSheetHolder, writeTableHolder, cell, head, relativeRowIndex, isHead);
+    }
+
+    @Override
+    public void afterCellDataConverted(CellWriteHandlerContext context) {
+        CellWriteHandler.super.afterCellDataConverted(context);
+    }
+
+    @Override
+    public void afterCellDataConverted(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, WriteCellData<?> cellData, Cell cell, Head head, Integer relativeRowIndex, Boolean isHead) {
+        CellWriteHandler.super.afterCellDataConverted(writeSheetHolder, writeTableHolder, cellData, cell, head, relativeRowIndex, isHead);
+    }
+
+    @Override
+    public void afterCellDispose(CellWriteHandlerContext context) {
+        CellWriteHandler.super.afterCellDispose(context);
+    }
+
+    @Override
+    public void afterCellDispose(WriteSheetHolder writeSheetHolder, WriteTableHolder writeTableHolder, List<WriteCellData<?>> cellDataList, Cell cell, Head head, Integer relativeRowIndex, Boolean isHead) {
+        if(isHead) return;
+        if(ObjectUtil.isNull(relativeRowIndex) || relativeRowIndex == 0) return;
+
+        if(!this.mergeFieldName.equals(head.getFieldName())) return;
+
+        Sheet sheet = cell.getSheet();
+        int rowIndexCurrent = cell.getRowIndex();
+        int rowIndexPrev = rowIndexCurrent - 1;
+        Row rowPrev = sheet.getRow(rowIndexPrev);
+        Cell cellPrev = rowPrev.getCell(cell.getColumnIndex());
+
+        Object cellValueCurrent = cell.getCellType() == CellType.STRING? cell.getStringCellValue() : cell.getNumericCellValue();
+        Object cellValuePrev = cellPrev.getCellType() == CellType.STRING? cellPrev.getStringCellValue() : cellPrev.getNumericCellValue();
+
+        if(!cellValueCurrent.equals(cellValuePrev)) return;
+        List<CellRangeAddress> mergedRegions = sheet.getMergedRegions();
+        boolean isMerged = false;
+        for (int i = 0; i < mergedRegions.size(); i++) {
+            CellRangeAddress cellRangeAddress = mergedRegions.get(i);
+            for (int k = 0; k < mergeColumnIndexList.size(); k++) {
+                if(cellRangeAddress.isInRange(rowIndexPrev, mergeColumnIndexList.get(k))){
+                    sheet.removeMergedRegion(i);
+                    cellRangeAddress.setLastRow(rowIndexCurrent);
+                    sheet.addMergedRegion(cellRangeAddress);
+                    isMerged = true;
+                }
+
+            }
+//            for(int j = this.columnIndexStart; j <= columnIndexEnd; j++){
+//                if(cellRangeAddress.isInRange(rowIndexPrev, j)){
+//                    sheet.removeMergedRegion(i);
+//                    cellRangeAddress.setLastRow(rowIndexCurrent);
+//                    sheet.addMergedRegion(cellRangeAddress);
+//                    isMerged = true;
+//                }
+//
+//            }
+
+        }
+
+        if(!isMerged) {
+            for (int k = 0; k < mergeColumnIndexList.size(); k++) {
+                CellRangeAddress cellRangeAddress = new CellRangeAddress(rowIndexPrev, rowIndexCurrent, mergeColumnIndexList.get(k), mergeColumnIndexList.get(k));
+                sheet.addMergedRegion(cellRangeAddress);
+            }
+        }
+
+    }
+
+}
+
diff --git a/ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/service/impl/ExportExcelServiceImpl.java b/ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/service/impl/ExportExcelServiceImpl.java
index 2813cc287f4a273bfaeca4dc4383b55faa083c00..4ee0b5214bc88f307d7276eff32b83bf125757f9 100644
--- a/ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/service/impl/ExportExcelServiceImpl.java
+++ b/ruoyi-modules/ruoyi-demo/src/main/java/org/dromara/demo/service/impl/ExportExcelServiceImpl.java
@@ -260,12 +260,14 @@ public class ExportExcelServiceImpl implements IExportExcelService {
                 everyRowData.setCityId(i);
                 everyRowData.setAreaId(i);
                 excelDataList.add(everyRowData);
+                // excelDataList.add(everyRowData);
             }
 
             // 创建表格
             WriteSheet sheet = ExcelWriterWrapper.sheetBuilder("自定义导出demo")
                 // 合并单元格
                 // .registerWriteHandler(new CellMergeStrategy(excelDataList, true))
+                // .registerWriteHandler(new OneToManyMergeStrategy("nickName", List.of(0, 1)))
                 .build();