diff --git a/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/CellMergeHandler.java b/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/CellMergeHandler.java
index dd37b6795..f811cdd7e 100644
--- a/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/CellMergeHandler.java
+++ b/ruoyi-common/ruoyi-common-excel/src/main/java/org/dromara/common/excel/core/CellMergeHandler.java
@@ -73,12 +73,14 @@ public class CellMergeHandler {
                 Object val = ReflectUtils.invokeGetter(rowObj, field.getName());
 
                 int colNum = mergeFieldsIndex.get(j);
-                if (!map.containsKey(field)) {
+                Object cellValue = map.containsKey(field) ? map.get(field).value() : null;
+
+                if (!map.containsKey(field) || (isEmpty(cellValue) && val != null)) {
                     map.put(field, new RepeatCell(val, i));
                 } else {
                     RepeatCell repeatCell = map.get(field);
-                    Object cellValue = repeatCell.value();
-                    if (cellValue == null || "".equals(cellValue)) {
+                    cellValue = repeatCell.value();
+                    if (isEmpty(cellValue)) {
                         // 空值跳过不合并
                         continue;
                     }
@@ -110,6 +112,10 @@ public class CellMergeHandler {
         return cellList;
     }
 
+    private boolean isEmpty(Object value) {
+        return value == null || "".equals(value);
+    }
+
     private boolean isMerge(List<?> list, int i, Field field) {
         boolean isMerge = true;
         CellMerge cm = field.getAnnotation(CellMerge.class);