diff --git a/packages/abc/st/index.en-US.md b/packages/abc/st/index.en-US.md
index 673f10d06..93483e0e0 100644
--- a/packages/abc/st/index.en-US.md
+++ b/packages/abc/st/index.en-US.md
@@ -104,7 +104,7 @@ When an exception is thrown when parsing column data, *INVALID DATA* will be for
 | `reset(extraParams?: any, options?: STLoadOptions)` | Reset data and `pi` to `1`, including single multi-select, sort, filter status (Covered default state) |
 | `addRow(data: STData | STData[], options?: { index?: number })` | Add a rows in the table |
 | `removeRow(data: STData | STData[] | number)` | Remove a row in the table |
-| `setRow(index: number | STData, item: STData, options?: { refreshSchema?: boolean; emitReload?: boolean })` | Sets the row value for the `index` in the table |
+| `setRow(index: number | STData, item: STData, options?: { refreshSchema?: boolean; emitReload?: boolean; arrayProcessMethod?: boolean })` | Sets the row value for the `index` in the table |
 | `pureItem(itemOrIndex: STData | number)` | Return pure data, `st` internally maintains a set of data for caching, this part of data may affect the backend |
 | `clear(cleanStatus = true)` | Clear all data |
 | `clearStatus()` | Clean all status (like this: single multi-select, sort, filter status) |
diff --git a/packages/abc/st/index.zh-CN.md b/packages/abc/st/index.zh-CN.md
index a7eb83c23..1a0e40b6c 100644
--- a/packages/abc/st/index.zh-CN.md
+++ b/packages/abc/st/index.zh-CN.md
@@ -104,7 +104,7 @@ module: import { STModule } from '@delon/abc/st';
 | `reset(extraParams?: any, options?: STLoadOptions)` | 重置且重新设置 `pi` 为 `1`，包含单多选、排序、过滤状态（同默认状态一并清除） |
 | `addRow(data: STData | STData[], options?: { index?: number })` | 添加行 |
 | `removeRow(data: STData | STData[] | number)` | 移除行 |
-| `setRow(index: number | STData, item: STData, options?: { refreshSchema?: boolean; emitReload?: boolean })` | 修改行数据，支持部分字段更新 |
+| `setRow(index: number | STData, item: STData, options?: { refreshSchema?: boolean; emitReload?: boolean; arrayProcessMethod?: boolean })` | 修改行数据，支持部分字段更新 |
 | `pureItem(itemOrIndex: STData | number)` | 返回纯净数据，`st` 内部会维护一组用于缓存的数据，这部分数据可能会影响后端 |
 | `clear(cleanStatus = true)` | 清空所有数据 |
 | `clearStatus()` | 清空所有状态（包含单多选、排序、过滤状态） |
diff --git a/packages/abc/st/st.component.ts b/packages/abc/st/st.component.ts
index f50a29179..d9aa42a58 100644
--- a/packages/abc/st/st.component.ts
+++ b/packages/abc/st/st.component.ts
@@ -604,12 +604,26 @@ export class STComponent implements AfterViewInit, OnChanges {
    * this.st.setRow(item, { price: 100 })
    * ```
    */
-  setRow(index: number | STData, item: STData, options?: { refreshSchema?: boolean; emitReload?: boolean }): this {
+  setRow(
+    index: number | STData,
+    item: STData,
+    options?: {
+      refreshSchema?: boolean;
+      emitReload?: boolean;
+      /**
+       *
+       * @param arrayProcessMethod 数组处理方式
+       *  - `true` 表示替换新值，不管新值为哪种类型
+       *  - `false` 表示会合并整个数组（将旧数据与新数据合并成新数组）
+       */
+      arrayProcessMethod?: boolean;
+    }
+  ): this {
     options = { refreshSchema: false, emitReload: false, ...options };
     if (typeof index !== 'number') {
       index = this._data.indexOf(index);
     }
-    this._data[index] = deepMergeKey(this._data[index], false, item);
+    this._data[index] = deepMergeKey(this._data[index], options?.arrayProcessMethod ?? false, item);
     this.optimizeData();
     if (options.refreshSchema) {
       this.resetColumns({ emitReload: options.emitReload });