diff --git a/packages-user/data-common/src/store/tileStore.test.ts b/packages-user/data-common/src/store/tileStore.test.ts
new file mode 100644
index 0000000..4d3ca0c
--- /dev/null
+++ b/packages-user/data-common/src/store/tileStore.test.ts
@@ -0,0 +1,88 @@
+import { describe, expect, it } from 'vitest';
+import { TileStore } from './tileStore';
+import { ITileRawData, TileType } from './types';
+
+function createTile(
+    num: number,
+    id: string,
+    events: Record<number, string> = {}
+): ITileRawData {
+    return {
+        num,
+        id,
+        events,
+        type: TileType.Terrain,
+        pass: { onlyEvents: false, inPass: 0b1111, outPass: 0b1111 },
+        eventPass: true
+    };
+}
+
+describe('TileStore events-map contract', () => {
+    // 验证图块注册时会保存并按优先级返回默认事件映射
+    it('returns the default events map for a registered tile', () => {
+        const store = new TileStore();
+        store.addTile(createTile(1, 'floor', { 20: 'late', 10: 'early' }));
+
+        expect(store.getEvent(1)).toEqual(
+            new Map([
+                [20, 'late'],
+                [10, 'early']
+            ])
+        );
+    });
+
+    // 验证查询不存在的图块时返回安全的空事件映射
+    it('returns an empty map for a missing tile', () => {
+        const store = new TileStore();
+
+        expect(store.getEvent(99)).toEqual(new Map());
+        expect(store.getEvent(99).size).toBe(0);
+    });
+
+    // 验证图块 id、数字索引和完整数据查询保持一致
+    it('keeps id and number indexes aligned with tile data', () => {
+        const store = new TileStore();
+        const tile = createTile(7, 'blue-wall', { 1: 'touch' });
+        store.addTile(tile);
+
+        expect(store.getData(7)).toBe(tile);
+        expect(store.idToNumber('blue-wall')).toBe(7);
+        expect(store.numberToId(7)).toBe('blue-wall');
+        expect(store.num('blue-wall')).toBe(7);
+        expect(store.num(7)).toBe(7);
+        expect(store.id(7)).toBe('blue-wall');
+        expect(store.id('blue-wall')).toBe('blue-wall');
+    });
+
+    // 验证按数字或 id 重复注册时旧图块及其事件映射都会被替换
+    it('replaces tiles and event maps on number or id conflicts', () => {
+        const store = new TileStore();
+        store.addTile(createTile(1, 'first', { 1: 'first-event' }));
+        store.addTile(createTile(1, 'second', { 2: 'second-event' }));
+
+        expect(store.getData(1)?.id).toBe('second');
+        expect(store.idToNumber('first')).toBeUndefined();
+        expect(store.getEvent(1)).toEqual(new Map([[2, 'second-event']]));
+
+        store.addTile(createTile(2, 'second', { 3: 'moved-event' }));
+
+        expect(store.getData(1)).toBeNull();
+        expect(store.numberToId(1)).toBeUndefined();
+        expect(store.getEvent(1)).toEqual(new Map());
+        expect(store.getData(2)?.id).toBe('second');
+        expect(store.getEvent(2)).toEqual(new Map([[3, 'moved-event']]));
+    });
+
+    // 验证调用方修改返回映射不会写入 TileStore 的内部默认事件
+    it('does not expose mutable internal event maps', () => {
+        const store = new TileStore();
+        store.addTile(createTile(3, 'safe-floor', { 4: 'original' }));
+
+        const events = store.getEvent(3);
+        const mutableEvents = events as Map<number, string>;
+        mutableEvents.set(5, 'external');
+
+        expect(store.getEvent(3)).toEqual(new Map([[4, 'original']]));
+        expect(store.getEvent(3)).not.toBe(events);
+    });
+});
diff --git a/packages-user/data-common/src/store/tileStore.ts b/packages-user/data-common/src/store/tileStore.ts
index 2820616..aef4cbc 100644
--- a/packages-user/data-common/src/store/tileStore.ts
+++ b/packages-user/data-common/src/store/tileStore.ts
@@ -17,6 +17,9 @@ export class TileStore<TLegacy = unknown> implements ITileStore<TLegacy> {
     /** 由图块数字反查图块 id 的映射表 */
     private readonly numMap: Map<number, string> = new Map();
 
+    /** 由图块数字保存的默认事件映射 */
+    private readonly eventMap: Map<number, Map<number, string>> = new Map();
+
     /** 当前挂载的旧样板图块转换器 */
     private legacyConverter: ITileLegacyConverter<TLegacy> | null = null;
 
@@ -24,8 +27,9 @@ export class TileStore<TLegacy = unknown> implements ITileStore<TLegacy> {
         return this.dataMap.get(num) ?? null;
     }
 
-    getEvent(num: number): number {
-        return this.dataMap.get(num)?.trigger ?? -1;
+    getEvent(num: number): ReadonlyMap<number, string> {
+        const events = this.eventMap.get(num);
+        return events ? new Map(events) : new Map();
     }
 
     getType(num: number): TileType {
@@ -50,6 +54,7 @@ export class TileStore<TLegacy = unknown> implements ITileStore<TLegacy> {
             }
         }
         this.dataMap.set(data.num, data);
+        this.eventMap.set(data.num, this.createEventMap(data.events));
         this.idMap.set(data.id, data.num);
         this.numMap.set(data.num, data.id);
     }
@@ -96,7 +101,17 @@ export class TileStore<TLegacy = unknown> implements ITileStore<TLegacy> {
     /** 删除一组旧的图块定义及其双向索引 */
     private deleteBy(num: number, id: string): void {
         this.dataMap.delete(num);
+        this.eventMap.delete(num);
         this.idMap.delete(id);
         this.numMap.delete(num);
     }
+
+    /** 将原始事件对象转换为运行时使用的数字键事件映射 */
+    private createEventMap(events: Record<number, string>): Map<number, string> {
+        const eventMap = new Map<number, string>();
+        for (const [priority, event] of Object.entries(events)) {
+            eventMap.set(Number(priority), event);
+        }
+        return eventMap;
+    }
 }