diff --git a/src/Adapters/DatabaseAdapter.php b/src/Adapters/DatabaseAdapter.php
index 740c610..72e2d21 100755
--- a/src/Adapters/DatabaseAdapter.php
+++ b/src/Adapters/DatabaseAdapter.php
@@ -6,15 +6,16 @@ namespace Lauthz\Adapters;
 
 use Lauthz\Models\Rule;
 use Lauthz\Contracts\DatabaseAdapter as DatabaseAdapterContract;
+use Lauthz\Contracts\BatchDatabaseAdapter as BatchDatabaseAdapterContract;
 use Casbin\Model\Model;
 use Casbin\Persist\AdapterHelper;
-
+use DateTime;
 /**
  * DatabaseAdapter.
  *
  * @author techlee@qq.com
  */
-class DatabaseAdapter implements DatabaseAdapterContract
+class DatabaseAdapter implements DatabaseAdapterContract, BatchDatabaseAdapterContract
 {
     use AdapterHelper;
 
@@ -101,6 +102,32 @@ class DatabaseAdapter implements DatabaseAdapterContract
         $this->savePolicyLine($ptype, $rule);
     }
 
+     /**
+     * Adds a policy rules to the storage.
+     * This is part of the Auto-Save feature.
+     *
+     * @param string $sec
+     * @param string $ptype
+     * @param string[][] $rules
+     */
+    public function addPolicies(string $sec, string $ptype, array $rules): void
+    {
+        $cols = [];
+        $i = 0;
+
+        foreach($rules as $rule) {
+            $temp['p_type'] = $ptype;
+            $temp['created_at'] = new DateTime();
+            $temp['updated_at'] = $temp['created_at'];
+            foreach ($rule as $key => $value) {
+                $temp['v'.strval($key)] = $value;
+            }
+            $cols[$i++] = $temp ?? [];
+            $temp = [];
+        }
+        $this->eloquent->insert($cols);
+    }
+
     /**
      * This is part of the Auto-Save feature.
      *
@@ -125,6 +152,33 @@ class DatabaseAdapter implements DatabaseAdapterContract
         }
     }
 
+    /**
+     * Removes policy rules from the storage.
+     * This is part of the Auto-Save feature.
+     *
+     * @param string $sec
+     * @param string $ptype
+     * @param string[][] $rules
+     */
+    public function removePolicies(string $sec, string $ptype, array $rules): void
+    {
+        $count = 0;
+        $instance = $this->eloquent->where('p_type', $ptype);
+        foreach($rules as $rule)
+        {
+            foreach ($rule as $key => $value) {
+                $keys[] = 'v'.strval($key);
+                $con['v'.strval($key)][] = $value;
+            }
+        }
+        $keys = array_unique($keys);
+        foreach($keys as $key){
+            $instance->whereIn($key, $con[$key]);
+        }
+        $num = $instance->delete();
+        $count += $num;
+    }
+
     /**
      * RemoveFilteredPolicy removes policy rules that match the filter from the storage.
      * This is part of the Auto-Save feature.
diff --git a/src/Contracts/BatchDatabaseAdapter.php b/src/Contracts/BatchDatabaseAdapter.php
new file mode 100644
index 0000000..983f78f
--- /dev/null
+++ b/src/Contracts/BatchDatabaseAdapter.php
@@ -0,0 +1,9 @@
+<?php
+
+namespace Lauthz\Contracts;
+
+use Casbin\Persist\BatchAdapter;
+
+interface BatchDatabaseAdapter extends BatchAdapter
+{
+}
diff --git a/tests/DatabaseAdapterTest.php b/tests/DatabaseAdapterTest.php
index 9406d35..48966dd 100644
--- a/tests/DatabaseAdapterTest.php
+++ b/tests/DatabaseAdapterTest.php
@@ -27,6 +27,20 @@ class DatabaseAdapterTest extends TestCase
         $this->assertTrue(Enforcer::enforce('eve', 'data3', 'read'));
     }
 
+    public function testAddPolicies()
+    {
+        $policies = [
+            ['u1', 'd1', 'read'],
+            ['u2', 'd2', 'read'],
+            ['u3', 'd3', 'read'],
+        ];
+        Enforcer::clearPolicy();
+        $this->initTable();
+        $this->assertEquals([], Enforcer::getPolicy());
+        Enforcer::addPolicies($policies);
+        $this->assertEquals($policies, Enforcer::getPolicy());
+    }
+
     public function testSavePolicy()
     {
         $this->assertFalse(Enforcer::enforce('alice', 'data4', 'read'));
@@ -51,6 +65,26 @@ class DatabaseAdapterTest extends TestCase
         $this->assertFalse(Enforcer::enforce('alice', 'data5', 'read'));
     }
 
+    public function testRemovePolicies()
+    {
+        $this->assertEquals([
+            ['alice', 'data1', 'read'],
+            ['bob', 'data2', 'write'],
+            ['data2_admin', 'data2', 'read'],
+            ['data2_admin', 'data2', 'write'],
+        ], Enforcer::getPolicy());
+
+        Enforcer::removePolicies([
+            ['data2_admin', 'data2', 'read'],
+            ['data2_admin', 'data2', 'write'],
+        ]);
+
+        $this->assertEquals([
+            ['alice', 'data1', 'read'],
+            ['bob', 'data2', 'write']
+        ], Enforcer::getPolicy());
+    }
+
     public function testRemoveFilteredPolicy()
     {
         $this->assertTrue(Enforcer::enforce('alice', 'data1', 'read'));