diff --git a/homeassistant/components/reolink/entity.py b/homeassistant/components/reolink/entity.py
index 53a81f2b162..bf62c9cbeee 100644
--- a/homeassistant/components/reolink/entity.py
+++ b/homeassistant/components/reolink/entity.py
@@ -132,6 +132,7 @@ class ReolinkChannelCoordinatorEntity(ReolinkHostCoordinatorEntity):
                 model=self._host.api.camera_model(dev_ch),
                 manufacturer=self._host.api.manufacturer,
                 sw_version=self._host.api.camera_sw_version(dev_ch),
+                serial_number=self._host.api.camera_uid(dev_ch),
                 configuration_url=self._conf_url,
             )
 
diff --git a/tests/components/reolink/conftest.py b/tests/components/reolink/conftest.py
index ba4e9615e8c..6cf88b9b00d 100644
--- a/tests/components/reolink/conftest.py
+++ b/tests/components/reolink/conftest.py
@@ -85,6 +85,7 @@ def reolink_connect_class() -> Generator[MagicMock, None, None]:
         host_mock.camera_model.return_value = TEST_CAM_MODEL
         host_mock.camera_name.return_value = TEST_NVR_NAME
         host_mock.camera_sw_version.return_value = "v1.1.0.0.0.0000"
+        host_mock.camera_uid.return_value = TEST_UID
         host_mock.session_active = True
         host_mock.timeout = 60
         host_mock.renewtimer.return_value = 600