diff --git a/packages/core/src/LogicFlow.tsx b/packages/core/src/LogicFlow.tsx
index 81e9b4be1..f3a60a104 100644
--- a/packages/core/src/LogicFlow.tsx
+++ b/packages/core/src/LogicFlow.tsx
@@ -900,12 +900,8 @@ export class LogicFlow {
       const {
         grid: { size = 1 },
         editConfigModel: { snapGrid },
-        gridSize,
       } = this.graphModel
-      // 开启网格对齐且当前画布网格尺寸与网格对齐尺寸不一致时，或者关闭网格对齐且当前画布网格尺寸不为1时，更新画布网格尺寸
-      if ((snapGrid && gridSize !== size) || (!snapGrid && gridSize !== 1)) {
-        this.graphModel.updateGridSize(snapGrid ? size : 1)
-      }
+      this.graphModel.updateGridSize(snapGrid ? size : 1)
     }
   }
 
diff --git a/packages/core/src/model/GraphModel.ts b/packages/core/src/model/GraphModel.ts
index e659d5f84..14d6b1541 100644
--- a/packages/core/src/model/GraphModel.ts
+++ b/packages/core/src/model/GraphModel.ts
@@ -162,6 +162,7 @@ export class GraphModel {
     this.background = background
     if (typeof grid === 'object' && options.snapGrid) {
       // 开启网格对齐时才根据网格尺寸设置步长
+      // TODO：需要让用户设置成 0 吗？后面可以讨论一下
       this.gridSize = grid.size || 1 // 默认 gridSize 设置为 1
     }
     this.theme = setupTheme(options.style)