diff --git a/sensor/bundle.json b/sensor/bundle.json
index 1394cdea28b9ed03a0701e797769b0f87fedee9f..34857b186c3c8be643732cd891f50d51a1c2407f 100644
--- a/sensor/bundle.json
+++ b/sensor/bundle.json
@@ -27,7 +27,8 @@
       },
       "build": {
         "sub_component": [
-          "//drivers/interface/sensor/v2_0:sensor_idl_target"
+          "//drivers/interface/sensor/v2_0:sensor_idl_target",
+          "//drivers/interface/sensor/v2_1:sensor_idl_target"
         ],
         "test": [
         ],
@@ -55,6 +56,22 @@
               ],
               "header_base": "//drivers/interface/sensor"
             }
+          },
+          {
+            "name": "//drivers/interface/sensor/v2_1:libsensor_proxy_2.1",
+            "header": {
+              "header_files": [
+              ],
+              "header_base": "//drivers/interface/sensor"
+            }
+          },
+          {
+            "name": "//drivers/interface/sensor/v2_1:libsensor_stub_2.1",
+            "header": {
+              "header_files": [
+              ],
+              "header_base": "//drivers/interface/sensor"
+            }
           }
         ]
       }
diff --git a/sensor/v2_1/BUILD.gn b/sensor/v2_1/BUILD.gn
new file mode 100644
index 0000000000000000000000000000000000000000..13dcd572320812a0a3712ae99264e3137c097ad5
--- /dev/null
+++ b/sensor/v2_1/BUILD.gn
@@ -0,0 +1,39 @@
+# Copyright (c) 2024 Huawei Device Co., Ltd.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+import("//build/config/components/hdi/hdi.gni")
+if (defined(ohos_lite)) {
+  group("libsensor_proxy_2.1") {
+    deps = []
+    public_configs = []
+  }
+} else {
+  hdi("sensor") {
+    module_name = "sensor_service"
+
+    sources = [
+      "ISensorCallback.idl",
+      "ISensorInterface.idl",
+      "SensorTypes.idl",
+    ]
+
+    deps = [
+      "//drivers/interface/sensor/v2_0:libsensor_proxy_2.0",
+      "//drivers/interface/sensor/v2_0:libsensor_stub_2.0",
+    ]
+
+    language = "cpp"
+    subsystem_name = "hdf"
+    part_name = "drivers_interface_sensor"
+  }
+}
diff --git a/sensor/v2_1/ISensorCallback.idl b/sensor/v2_1/ISensorCallback.idl
new file mode 100644
index 0000000000000000000000000000000000000000..d184f72c9e752e0103633a3fd4fa27a762e3fa25
--- /dev/null
+++ b/sensor/v2_1/ISensorCallback.idl
@@ -0,0 +1,50 @@
+/*
+ * Copyright (c) 2024 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup HdiSensor
+ * @{
+ *
+ * @brief Provides unified APIs for sensor services to access sensor drivers.
+ *
+ * A sensor service can obtain a sensor driver object or agent and then call APIs provided by this object or agent to
+ * access different types of sensor devices based on the sensor IDs, thereby obtaining sensor information,
+ * subscribing to or unsubscribing from sensor data, enabling or disabling a sensor,
+ * setting the sensor data reporting mode, and setting sensor options such as the accuracy and measurement range.
+ *
+ * @version 2.0
+ */
+
+package ohos.hdi.sensor.v2_1;
+
+import ohos.hdi.sensor.v2_0.SensorTypes;
+import ohos.hdi.sensor.v2_0.ISensorCallback;
+
+/**
+ * @brief Defines the callback for reporting sensor data. This callback needs to be registered when
+ * a sensor user subscribes to sensor data. Only after the sensor is enabled, the sensor data subscriber can receive
+ * sensor data. For details, see {@link ISensorInterface}.
+ *
+ * @since 5.1
+ */
+[callback] interface ISensorCallback extends ohos.hdi.sensor.v2_0.ISensorCallback {
+    /**
+    * @brief Defines the function for reporting sensor data.
+    * @param event Indicates the information about sensor event in the system. 
+    *
+    * @since 1.0
+    */
+    [oneway] OnDataEventOneWay([in] struct HdfSensorEvents event);
+}
diff --git a/sensor/v2_1/ISensorInterface.idl b/sensor/v2_1/ISensorInterface.idl
new file mode 100644
index 0000000000000000000000000000000000000000..1540f92d5f4947ba02652782cb66615e0f6fd398
--- /dev/null
+++ b/sensor/v2_1/ISensorInterface.idl
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) 2024 Huawei Device Co., Ltd.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/**
+ * @addtogroup HdiSensor
+ * @{
+ *
+ * @brief Provides unified APIs for sensor services to access sensor drivers.
+ *
+ * A sensor service can obtain a sensor driver object or agent and then call APIs provided by this object or agent to
+ * access different types of sensor devices based on the sensor IDs, thereby obtaining sensor information,
+ * subscribing to or unsubscribing from sensor data, enabling or disabling a sensor,
+ * setting the sensor data reporting mode, and setting sensor options such as the accuracy and measurement range.
+ *
+ * @since 5.1
+ */
+
+/**
+ * @file ISensorInterface.idl
+ *
+ * @brief Declares the APIs provided by the sensor module for obtaining sensor information, subscribing to or
+ * unsubscribing from sensor data, enabling or disabling a sensor, setting the sensor data reporting mode,
+ * and setting sensor options such as the accuracy and measurement range.
+ *
+ * @since 5.1
+ * @version 2.1
+ */
+
+package ohos.hdi.sensor.v2_0;
+
+import ohos.hdi.sensor.v2_0.SensorTypes;
+import ohos.hdi.sensor.v2_1.ISensorCallback;
+import ohos.hdi.sensor.v2_0.ISensorInterface;
+
+/**
+ * @brief Defines the functions for performing basic operations on sensors.
+ *
+ * The operations include obtaining sensor information, subscribing to or unsubscribing from sensor data,
+ * enabling or disabling a sensor, setting the sensor data reporting mode, and setting sensor options such as
+ * the accuracy and measurement range.
+ */
+
+interface ISensorInterface extends ohos.hdi.sensor.v2_0.ISensorInterface {
+    /**
+     * @brief Registers the callback for reporting sensor data to the subscriber.
+     *
+     * @param groupId Indicates the sensor group ID.
+     * The sensorId enumeration value range is 128-160, which means that the medical sensor service is subscribed.
+     * It only needs to be subscribed once successfully, and there is no need to subscribe repeatedly.
+     * The sensorId enumeration value range is not within 128-160, which means that the traditional sensor
+     * is subscribed, and the subscription is successful once.
+     * @param callbackObj Indicates the callback to register. For details, see {@link ISensorCallback}.
+     * @return Returns <b>0</b> if the callback is successfully registered; returns a negative value otherwise.
+     *
+     * @since 5.1
+     * @version 1.0
+     */
+    RegisterOneWay([in] int groupId, [in] ISensorCallback callbackObj);
+
+    /**
+     * @brief Deregisters the callback for reporting sensor data.
+     *
+     * @param groupId Indicates the sensor group ID.
+     * The sensorId enumeration value range is 128-160, which means that the medical sensor service is subscribed.
+     * It only needs to cancel the subscription once successfully, and there is no need to
+     * cancel the subscription repeatedly. The sensorId enumeration value range is not within 128-160,
+     * which means that the traditional sensor is subscribed. You can cancel the subscription once successfully.
+     * @param callbackObj Indicates the callback to deregister. For details, see {@link ISensorCallback}.
+     * @return Returns <b>0</b> if the callback is successfully deregistered; returns a negative value otherwise.
+     *
+     * @since 5.1
+     * @version 1.0
+     */
+    UnregisterOneWay([in] int groupId, [in] ISensorCallback callbackObj);
+}