diff --git a/packages/sheets-ui/src/commands/commands/add-worksheet-merge.command.ts b/packages/sheets-ui/src/commands/commands/add-worksheet-merge.command.ts
index 9089bccb96fc..77626027d4af 100644
--- a/packages/sheets-ui/src/commands/commands/add-worksheet-merge.command.ts
+++ b/packages/sheets-ui/src/commands/commands/add-worksheet-merge.command.ts
@@ -32,7 +32,8 @@ import {
     AddWorksheetMergeMutation,
     getAddMergeMutationRangeByType,
     RemoveMergeUndoMutationFactory,
-    RemoveWorksheetMergeMutation, SelectionManagerService } from '@univerjs/sheets';
+    RemoveWorksheetMergeMutation, SelectionManagerService,
+} from '@univerjs/sheets';
 import { IConfirmService } from '@univerjs/ui';
 import type { IAccessor } from '@wendellhu/redi';
 
@@ -94,14 +95,21 @@ export const AddWorksheetMergeCommand: ICommand = {
             subUnitId,
             ranges,
         };
-        redoMutations.push({ id: RemoveWorksheetMergeMutation.id, params: removeMergeMutationParams });
-        redoMutations.push({ id: AddWorksheetMergeMutation.id, params: addMergeMutationParams });
 
         // prepare undo mutations
         const undoRemoveMergeMutationParams = RemoveMergeUndoMutationFactory(accessor, removeMergeMutationParams);
         const undoMutationParams = AddMergeUndoMutationFactory(accessor, addMergeMutationParams);
+
+        // params should be the merged cells to be deleted accurately, rather than the selection
+        if (undoRemoveMergeMutationParams.ranges.length > 0) {
+            redoMutations.push({ id: RemoveWorksheetMergeMutation.id, params: undoRemoveMergeMutationParams });
+        }
+
+        redoMutations.push({ id: AddWorksheetMergeMutation.id, params: addMergeMutationParams });
         undoMutations.push({ id: RemoveWorksheetMergeMutation.id, params: undoMutationParams });
-        undoMutations.push({ id: AddWorksheetMergeMutation.id, params: undoRemoveMergeMutationParams });
+        if (undoRemoveMergeMutationParams.ranges.length > 0) {
+            undoMutations.push({ id: AddWorksheetMergeMutation.id, params: undoRemoveMergeMutationParams });
+        }
 
         // add set range values mutations to undo redo mutations
         if (willClearSomeCell) {
diff --git a/packages/sheets-ui/src/controllers/clipboard/utils.ts b/packages/sheets-ui/src/controllers/clipboard/utils.ts
index dc4238a533e0..16de4aad515b 100644
--- a/packages/sheets-ui/src/controllers/clipboard/utils.ts
+++ b/packages/sheets-ui/src/controllers/clipboard/utils.ts
@@ -505,10 +505,12 @@ export function getClearAndSetMergeMutations(
         subUnitId,
         ranges: mergeRangeData,
     };
-    redoMutationsInfo.push({
-        id: AddWorksheetMergeMutation.id,
-        params: addMergeMutationParams,
-    });
+    if (mergeRangeData.length > 0) {
+        redoMutationsInfo.push({
+            id: AddWorksheetMergeMutation.id,
+            params: addMergeMutationParams,
+        });
+    }
 
     // undo
     const undoAddMergeMutation: IRemoveWorksheetMergeMutationParams = AddMergeUndoMutationFactory(
@@ -516,10 +518,12 @@ export function getClearAndSetMergeMutations(
         addMergeMutationParams
     );
 
-    undoMutationsInfo.push({
-        id: RemoveWorksheetMergeMutation.id,
-        params: undoAddMergeMutation,
-    });
+    if (mergeRangeData.length > 0) {
+        undoMutationsInfo.push({
+            id: RemoveWorksheetMergeMutation.id,
+            params: undoAddMergeMutation,
+        });
+    }
 
     return { undos: undoMutationsInfo, redos: redoMutationsInfo };
 }
diff --git a/packages/sheets/src/commands/commands/remove-worksheet-merge.command.ts b/packages/sheets/src/commands/commands/remove-worksheet-merge.command.ts
index 92d8e53801b9..7c528c100775 100644
--- a/packages/sheets/src/commands/commands/remove-worksheet-merge.command.ts
+++ b/packages/sheets/src/commands/commands/remove-worksheet-merge.command.ts
@@ -70,17 +70,18 @@ export const RemoveWorksheetMergeCommand: ICommand = {
         });
         if (!hasMerge) return false;
 
-        const undoMutationParams: IAddWorksheetMergeMutationParams = RemoveMergeUndoMutationFactory(
+        const undoredoMutationParams: IAddWorksheetMergeMutationParams = RemoveMergeUndoMutationFactory(
             accessor,
             removeMergeMutationParams
         );
-        const result = commandService.syncExecuteCommand(RemoveWorksheetMergeMutation.id, removeMergeMutationParams);
+        const result = commandService.syncExecuteCommand(RemoveWorksheetMergeMutation.id, undoredoMutationParams);
 
         if (result) {
             undoRedoService.pushUndoRedo({
                 unitID: unitId,
-                undoMutations: [{ id: AddWorksheetMergeMutation.id, params: undoMutationParams }],
-                redoMutations: [{ id: RemoveWorksheetMergeMutation.id, params: removeMergeMutationParams }],
+                undoMutations: [{ id: AddWorksheetMergeMutation.id, params: undoredoMutationParams }],
+                // params should be the merged cells to be deleted accurately, rather than the selection
+                redoMutations: [{ id: RemoveWorksheetMergeMutation.id, params: undoredoMutationParams }],
             });
             return true;
         }