diff --git a/packages/core/src/app.ts b/packages/core/src/app.ts
index ca0baf5a..42353be6 100644
--- a/packages/core/src/app.ts
+++ b/packages/core/src/app.ts
@@ -2,13 +2,13 @@ import { BaseService } from '@pictode/utils';
 import { fabric } from 'fabric';
 
 import { MouseService } from './services/mouse';
-import { AppOption, ControlsOption, EventArgs, Plugin, ToolStrategy } from './types';
+import { AppOption, ControlsOption, EventArgs, Plugin, Tool } from './types';
 import { DEFAULT_APP_OPTION } from './utils';
 
 export class App extends BaseService<EventArgs> {
   public canvas: fabric.Canvas;
   public mouseService: MouseService;
-  public currentTool: ToolStrategy | null = null;
+  public currentTool: Tool | null = null;
 
   private option: AppOption & { controls: ControlsOption };
   private installedPlugins: Map<string, Plugin> = new Map();
@@ -55,7 +55,7 @@ export class App extends BaseService<EventArgs> {
     this.render(true);
   }
 
-  public setTool(tool: ToolStrategy): void {
+  public setTool(tool: Tool): void {
     this.currentTool = tool;
     this.canvas.discardActiveObject();
     this.render();
diff --git a/packages/core/src/tools/ellipse-tool.ts b/packages/core/src/tools/ellipse-tool.ts
index 0a2c5f27..aee6bc98 100644
--- a/packages/core/src/tools/ellipse-tool.ts
+++ b/packages/core/src/tools/ellipse-tool.ts
@@ -1,11 +1,11 @@
 import { fabric } from 'fabric';
 
 import { Ellipse } from '../customs/ellipse';
-import { AppMouseEvent, ToolStrategy } from '../types';
+import { AppMouseEvent, Tool } from '../types';
 
 import { selectTool } from './select-tool';
 
-class EllipseTool implements ToolStrategy {
+class EllipseTool implements Tool {
   public name: string = 'ellipseTool';
   public drawable: boolean = true;
   private startPointer: fabric.Point = new fabric.Point(0, 0);
diff --git a/packages/core/src/tools/polyline-tool.ts b/packages/core/src/tools/polyline-tool.ts
index b86cd959..7bcf71f2 100644
--- a/packages/core/src/tools/polyline-tool.ts
+++ b/packages/core/src/tools/polyline-tool.ts
@@ -1,11 +1,11 @@
 import { fabric } from 'fabric';
 
 import { Polyline } from '../customs/polyline';
-import { AppMouseEvent, ToolStrategy } from '../types';
+import { AppMouseEvent, Tool } from '../types';
 
 import { selectTool } from './select-tool';
 
-class PolylineTool implements ToolStrategy {
+class PolylineTool implements Tool {
   public name: string = 'polylineTool';
   public drawable: boolean = true;
   private points: fabric.Point[] = [];
diff --git a/packages/core/src/tools/rect-tool.ts b/packages/core/src/tools/rect-tool.ts
index 2fc1ca6a..f45c2c8b 100644
--- a/packages/core/src/tools/rect-tool.ts
+++ b/packages/core/src/tools/rect-tool.ts
@@ -1,11 +1,11 @@
 import { fabric } from 'fabric';
 
 import { Rect } from '../customs/rect';
-import { AppMouseEvent, ToolStrategy } from '../types';
+import { AppMouseEvent, Tool } from '../types';
 
 import { selectTool } from './select-tool';
 
-class RectTool implements ToolStrategy {
+class RectTool implements Tool {
   public name: string = 'rectTool';
   public drawable: boolean = true;
   private startPointer: fabric.Point = new fabric.Point(0, 0);
diff --git a/packages/core/src/tools/select-tool.ts b/packages/core/src/tools/select-tool.ts
index 3fd544ef..00f44c56 100644
--- a/packages/core/src/tools/select-tool.ts
+++ b/packages/core/src/tools/select-tool.ts
@@ -1,6 +1,6 @@
-import { AppMouseEvent, ToolStrategy } from '../types';
+import { AppMouseEvent, Tool } from '../types';
 
-class SelectTool implements ToolStrategy {
+class SelectTool implements Tool {
   public name: string = 'selectTool';
   public drawable: boolean = false;
 
diff --git a/packages/core/src/tools/triangle-tool.ts b/packages/core/src/tools/triangle-tool.ts
index d33a0865..4be25da9 100644
--- a/packages/core/src/tools/triangle-tool.ts
+++ b/packages/core/src/tools/triangle-tool.ts
@@ -1,11 +1,11 @@
 import { fabric } from 'fabric';
 
 import { Triangle } from '../customs/triangle';
-import { AppMouseEvent, ToolStrategy } from '../types';
+import { AppMouseEvent, Tool } from '../types';
 
 import { selectTool } from './select-tool';
 
-class TriangleTool implements ToolStrategy {
+class TriangleTool implements Tool {
   public name: string = 'triangleTool';
   public drawable: boolean = true;
   private startPointer: fabric.Point = new fabric.Point(0, 0);
diff --git a/packages/core/src/types.ts b/packages/core/src/types.ts
index 47b94414..26031036 100644
--- a/packages/core/src/types.ts
+++ b/packages/core/src/types.ts
@@ -16,7 +16,7 @@ export interface AppMouseEvent {
   app: App;
 }
 
-export interface ToolStrategy {
+export interface Tool {
   name: string;
   drawable: boolean;
   onMouseDown?: (event: AppMouseEvent) => void;