diff --git a/cocos/physics/CCPhysicsBody.h b/cocos/physics/CCPhysicsBody.h
index 8eedaa974f..a47fd564a8 100644
--- a/cocos/physics/CCPhysicsBody.h
+++ b/cocos/physics/CCPhysicsBody.h
@@ -50,6 +50,8 @@ const PhysicsMaterial PHYSICSBODY_MATERIAL_DEFAULT(0.1f, 0.5f, 0.5f);
 /**
  * @addtogroup physics
  * @{
+ * @addtogroup physics_2d
+ * @{
  */
 
 /**
@@ -560,6 +562,8 @@ protected:
 };
 
 /** @} */
+/** @} */
+
 
 NS_CC_END
 
diff --git a/cocos/physics/CCPhysicsContact.h b/cocos/physics/CCPhysicsContact.h
index 7125fe0923..cb8d76edf6 100644
--- a/cocos/physics/CCPhysicsContact.h
+++ b/cocos/physics/CCPhysicsContact.h
@@ -57,6 +57,8 @@ typedef struct CC_DLL PhysicsContactData
 /**
  * @addtogroup physics
  * @{
+ * @addtogroup physics_2d
+ * @{
  */
 
 /**
@@ -307,6 +309,7 @@ protected:
     virtual ~EventListenerPhysicsContactWithGroup();
 };
 
+/** @} */
 /** @} */
 
 NS_CC_END
diff --git a/cocos/physics/CCPhysicsHelper.h b/cocos/physics/CCPhysicsHelper.h
index 67bafa446e..bc2199d48b 100644
--- a/cocos/physics/CCPhysicsHelper.h
+++ b/cocos/physics/CCPhysicsHelper.h
@@ -37,6 +37,8 @@ NS_CC_BEGIN
 /**
  * @addtogroup physics
  * @{
+ * @addtogroup physics_2d
+ * @{
  */
 
 /**
@@ -108,6 +110,7 @@ public:
     }
 };
 
+/** @} */
 /** @} */
 
 NS_CC_END
diff --git a/cocos/physics/CCPhysicsJoint.h b/cocos/physics/CCPhysicsJoint.h
index 218c483bd6..2fe03328f3 100644
--- a/cocos/physics/CCPhysicsJoint.h
+++ b/cocos/physics/CCPhysicsJoint.h
@@ -42,6 +42,8 @@ class PhysicsWorld;
 /**
  * @addtogroup physics
  * @{
+ * @addtogroup physics_2d
+ * @{
  */
 
 /**
@@ -567,6 +569,8 @@ protected:
 };
 
 /** @} */
+/** @} */
+
 
 NS_CC_END
 
diff --git a/cocos/physics/CCPhysicsShape.h b/cocos/physics/CCPhysicsShape.h
index 4c55f2946b..4cfa07bc81 100644
--- a/cocos/physics/CCPhysicsShape.h
+++ b/cocos/physics/CCPhysicsShape.h
@@ -61,6 +61,9 @@ const PhysicsMaterial PHYSICSSHAPE_MATERIAL_DEFAULT;
 /**
  *  @addtogroup physics
  *  @{
+ *  @addtogroup physics_2d
+ *  @{
+
  */
 
 /**
@@ -718,6 +721,7 @@ protected:
     friend class PhysicsBody;
 };
 
+/** @} */
 /** @} */
 
 NS_CC_END
diff --git a/cocos/physics/CCPhysicsWorld.h b/cocos/physics/CCPhysicsWorld.h
index 1c98511ba1..4f45d6554e 100644
--- a/cocos/physics/CCPhysicsWorld.h
+++ b/cocos/physics/CCPhysicsWorld.h
@@ -82,6 +82,8 @@ typedef PhysicsQueryRectCallbackFunc PhysicsQueryPointCallbackFunc;
 /**
  * @addtogroup physics
  * @{
+ * @addtogroup physics_2d
+ * @{
  */
 
 /**
@@ -415,6 +417,8 @@ protected:
 extern const float CC_DLL PHYSICS_INFINITY;
 
 /** @} */
+/** @} */
+
 NS_CC_END
 
 #endif // CC_USE_PHYSICS
diff --git a/docs/Groups.h b/docs/Groups.h
index fb19abd5de..3c406ef44b 100644
--- a/docs/Groups.h
+++ b/docs/Groups.h
@@ -6,6 +6,7 @@
 @defgroup base              Base
 @defgroup network           Network
 @defgroup physics           Physics
+@defgroup physics_2d        Physics 2D
 @defgroup platform          Platform
 @defgroup renderer          Renderer
 @defgroup storage           Storage