diff --git a/src/engine.js b/src/engine.js
index 1796341..0b7b973 100644
--- a/src/engine.js
+++ b/src/engine.js
@@ -21,7 +21,7 @@ class Engine {
                 keywords = Engine.participle(item, dict, prefix);
             } else {
                 for (const key of indexs) {
-                    const words = item[key];
+                    const words = resolve(key, item);
                     if (words) {
                         keywords += Engine.participle(words, dict, prefix);
                     }
@@ -110,4 +110,9 @@ class Engine {
     }
 };
 
-module.exports = Engine;
\ No newline at end of file
+function resolve(path, obj, separator='.') {
+    let properties = Array.isArray(path) ? path : path.split(separator)
+    return properties.reduce((prev, curr) => prev && prev[curr], obj)
+}
+
+module.exports = Engine;
diff --git a/test/index.test.js b/test/index.test.js
index 18c825a..b600dcf 100644
--- a/test/index.test.js
+++ b/test/index.test.js
@@ -14,7 +14,8 @@ describe('PinyinEngine()', () => {
             assert.deepEqual(['中央美院'], pinyinEngine.query('meiyuan'));
         });
         it('数据应当支持 `[Object]`', () => {
-            const pinyinEngine = new PinyinEngine([{
+            const pinyinEngine = new PinyinEngine([
+                {
                     id: 0,
                     name: '清华大学'
                 },
@@ -32,6 +33,33 @@ describe('PinyinEngine()', () => {
                 name: '中央美院'
             }], pinyinEngine.query('meiyuan'));
         });
+        it('索引取值应当支持 path 格式', () => {
+            const pinyinEngine = new PinyinEngine([{
+                    id: 0,
+                    deep: {
+                        name: '清华大学'
+                    }
+                },
+                {
+                    id: 1,
+                    deep: {
+                        name: '北京大学'
+                    }
+                },
+                {
+                    id: 3,
+                    deep: {
+                        name: '中央美院'
+                    }
+                }
+            ], ['deep.name']);
+            assert.deepEqual([{
+                id: 3,
+                deep: {
+                    name: '中央美院'
+                }
+            }], pinyinEngine.query('meiyuan'));
+        });
         it('应当支持拼音首字母', () => {
             const pinyinEngine = new PinyinEngine([
                 '清华大学',
@@ -74,4 +102,4 @@ describe('PinyinEngine()', () => {
         });
 
     });
-});
\ No newline at end of file
+});