diff --git a/README.md b/README.md
index 6b2d271..160123d 100644
--- a/README.md
+++ b/README.md
@@ -251,14 +251,20 @@ let rows = yield db.select('table-name');
 ```js
 let rows = yield db.select('table-name', {
   where: {
-    type: 'javascript'
+    type: 'javascript',
+    name: { like: '%node%' },
+    price: { lte: 50, gte:20 }
   },
   columns: ['author', 'title'],
   orders: [['id', 'desc']]
 });
 
 => SELECT `author`, `title` FROM `table-name`
- WHERE `type` = 'javascript' ORDER BY `id` DESC
+ WHERE `type` = 'javascript' AND `name` LIKE
+ '%node%' AND `price` >= 20 AND `price` <= 50
+ ORDER BY `id` DESC
+
+ support:lte(<=)、gte(>=)、lt(<)、gt(>)
 ```
 
 ### Delete
diff --git a/lib/operator.js b/lib/operator.js
index d0e451a..76a0013 100644
--- a/lib/operator.js
+++ b/lib/operator.js
@@ -8,6 +8,7 @@ const debug = require('debug')('ali-rds:operator');
 const SqlString = require('./sqlstring');
 const literals = require('./literals');
 const wrap = require('co-wrap-all');
+const is = require('is-type-of');
 
 module.exports = Operator;
 
@@ -316,15 +317,27 @@ proto._where = function(where) {
     const value = where[key];
     if (Array.isArray(value)) {
       wheres.push('?? IN (?)');
+      values.push(key, value);
+    } else if (is.object(value) && !Array.isArray(value)) {
+      Object.keys(value).forEach(o => {
+        o = o.toLowerCase();
+        ((o === 'like') && wheres.push('?? LIKE ?')) ||
+        ((o === 'gte') && wheres.push('?? >= ?')) ||
+        ((o === 'gt') && wheres.push('?? > ?')) ||
+        ((o === 'lte') && wheres.push('?? <= ?')) ||
+        ((o === 'lt') && wheres.push('?? < ?'));
+
+        values.push(key, value[o] || value);
+      });
     } else {
       if (value === null || value === undefined) {
         wheres.push('?? IS ?');
+        values.push(key, value);
       } else {
         wheres.push('?? = ?');
+        values.push(key, value);
       }
     }
-    values.push(key);
-    values.push(value);
   }
   if (wheres.length > 0) {
     return this.format(' WHERE ' + wheres.join(' AND '), values);
diff --git a/package.json b/package.json
index db01a22..b479573 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "ali-rds",
-  "version": "3.3.1",
+  "version": "3.3.2",
   "description": "Aliyun RDS client",
   "main": "lib/client.js",
   "files": [
@@ -14,6 +14,7 @@
   "dependencies": {
     "co-wrap-all": "^1.0.0",
     "debug": "^2.2.0",
+    "is-type-of": "^1.2.1",
     "mysql": "^2.13.0",
     "pify": "^2.3.0"
   },
diff --git a/test/operator.test.js b/test/operator.test.js
index d39d00a..f0d7d8c 100644
--- a/test/operator.test.js
+++ b/test/operator.test.js
@@ -25,6 +25,9 @@ describe('operator.test.js', function() {
       assert.equal(op._where({ id: 1, name: 'foo\'\"' }), ' WHERE `id` = 1 AND `name` = \'foo\\\'\\\"\'');
       assert.equal(op._where({ id: 1, name: 'foo\'\"', user: 'fengmk2' }),
         ' WHERE `id` = 1 AND `name` = \'foo\\\'\\\"\' AND `user` = \'fengmk2\'');
+      assert.equal(op._where({ name: { like: '%fe%' }, sex: 1 }), ' WHERE `name` LIKE \'%fe%\' AND `sex` = 1');
+      assert.equal(op._where({ time: { lte: '2019-10-10', gt: '2019-10-6' }, name: 'foo' }), ' WHERE `time` <= \'2019-10-10\' AND `time` > \'2019-10-6\' AND `name` = \'foo\'');
+      assert.equal(op._where({ name: { like: '%fe%' }, age: { lt: 20, gte: 18 }, address: 'beijing' }), ' WHERE `name` LIKE \'%fe%\' AND `age` < 20 AND `age` >= 18 AND `address` = \'beijing\'');
     });
   });