diff --git a/display/composer/common/include/display_vdi_adapter_interface.h b/display/composer/common/include/display_vdi_adapter_interface.h
index 4dbe63735c6e83fdf3f09392b06ecdceb61b28ba..b37e343131d54e55d9cb1dd7a6ee0ccc28480bb0 100644
--- a/display/composer/common/include/display_vdi_adapter_interface.h
+++ b/display/composer/common/include/display_vdi_adapter_interface.h
@@ -94,6 +94,7 @@ struct DisplayComposerVdiAdapter {
         const std::vector<BufferHandle*>& inHandles);
     int32_t (*ClearDisplayClientBuffer)(uint32_t devId);
     int32_t (*ClearLayerBuffer)(uint32_t devId, uint32_t layerId);
+    int32_t (*GetDisplayIdentificationData)(uint32_t devId, uint8_t& portId, std::vector<uint8_t>& edidData);
 };
 
 using LoadVdiImplFunc = int32_t (*)();
@@ -159,6 +160,8 @@ using FastPresentFunc = int32_t (*)(uint32_t devId, const PresentParam& param,
     const std::vector<BufferHandle*>& inHandles);
 using ClearDisplayClientBufferFunc = int32_t (*)(uint32_t devId);
 using ClearLayerBufferFunc = int32_t (*)(uint32_t devId, uint32_t layerId);
+using GetDisplayIdentificationDataFunc = int32_t (*)(uint32_t devId, uint8_t& portId, std::vector<uint8_t>& edidData);
+
 
 } // namespace Composer
 } // namespace Display
diff --git a/display/composer/v1_2/IDisplayComposer.idl b/display/composer/v1_2/IDisplayComposer.idl
index 23df9a95c21b07890d645a3125f15bea10c5f8b8..73b2619856ea3924050be47ab1fe151ea5002a5a 100644
--- a/display/composer/v1_2/IDisplayComposer.idl
+++ b/display/composer/v1_2/IDisplayComposer.idl
@@ -106,7 +106,7 @@ interface IDisplayComposer extends ohos.hdi.display.composer.v1_1.IDisplayCompos
      * @return Returns <b>0</b> if the operation is successful; returns an error code defined
      * in {@link DispErrCode} otherwise.
      * @since 5.0
-     * @version 1.2
+     * @version 1.0
      */
      SetDisplayActiveRegion([in] unsigned int devId, [in] struct IRect rect);
 
@@ -122,4 +122,17 @@ interface IDisplayComposer extends ohos.hdi.display.composer.v1_1.IDisplayCompos
      * @version 1.0
      */
      FastPresent([in] unsigned int devId, [in] struct PresentParam param, [in] NativeBuffer[] inHandles);
+
+     /**
+     * @brief the function to GetDisplayIdentificationData.
+     *
+     * @param devId Indicates which device, portId Indicates which port,
+     * edidData Indicates the edid value.
+     *
+     * @return Returns <b>0</b> if the operation is successful; returns an error code defined
+     * in {@link DispErrCode} otherwise.
+     * @since 5.0
+     * @version 1.0
+     */
+     GetDisplayIdentificationData([in] unsigned int devId, [out] unsigned char portId, [out] unsigned char[] edidData);
 }
diff --git a/display/composer/v1_2/hdi_impl/display_composer_hdi_impl.h b/display/composer/v1_2/hdi_impl/display_composer_hdi_impl.h
index cd1fa4278cf5595985786ec7af87112bcd62f1e4..c5a845cc93ba618395d4adb49ac98d5300a03e44 100644
--- a/display/composer/v1_2/hdi_impl/display_composer_hdi_impl.h
+++ b/display/composer/v1_2/hdi_impl/display_composer_hdi_impl.h
@@ -179,7 +179,14 @@ public:
     {
         return ToDispErrCode(req_v1_2_->SetLayerPerFrameParameterSmq(devId, layerId, key, value));
     }
-
+	
+    virtual int32_t GetDisplayIdentificationData(uint32_t devId, uint8_t& portId,
+        std::vector<uint8_t>& edidData) override
+    {
+        COMPOSER_CHECK_NULLPTR_RETURN(hdi_v1_2_);
+        return ToDispErrCode(hdi_v1_2_->GetDisplayIdentificationData(devId, portId, edidData));
+    }
+	
 protected:
     using BaseType1_1 = V1_1::DisplayComposerHdiImpl<Interface, CompHdi, CmdReq>;
     using BaseType1_1::WAIT_TIME_INTERVAL;
diff --git a/display/composer/v1_2/include/idisplay_composer_interface.h b/display/composer/v1_2/include/idisplay_composer_interface.h
index 23aae31ea2bbf92718839e8fbf38d4d81d335803..a57b9d26a6c35c7ce5ad640b2853661697cd185c 100644
--- a/display/composer/v1_2/include/idisplay_composer_interface.h
+++ b/display/composer/v1_2/include/idisplay_composer_interface.h
@@ -77,6 +77,8 @@ public:
     virtual int32_t FastPresent(uint32_t devId, const PresentParam& param,
         const std::vector<BufferHandle*> inHandles) = 0;
 
+    virtual int32_t GetDisplayIdentificationData(uint32_t devId, uint8_t& portId, std::vector<uint8_t>& edidData) = 0;
+
     virtual int32_t SetLayerPerFrameParameterSmq(uint32_t devId, uint32_t layerId, const std::string& key,
         const std::vector<int8_t>& value) = 0;
 };