diff --git a/homeassistant/components/trend/binary_sensor.py b/homeassistant/components/trend/binary_sensor.py
index 2bc5949b970..30058bb056c 100644
--- a/homeassistant/components/trend/binary_sensor.py
+++ b/homeassistant/components/trend/binary_sensor.py
@@ -27,6 +27,7 @@ from homeassistant.const import (
     CONF_ENTITY_ID,
     CONF_FRIENDLY_NAME,
     CONF_SENSORS,
+    CONF_UNIQUE_ID,
     STATE_ON,
     STATE_UNAVAILABLE,
     STATE_UNKNOWN,
@@ -89,6 +90,7 @@ SENSOR_SCHEMA = vol.All(
             vol.Optional(CONF_MIN_GRADIENT, default=0.0): vol.Coerce(float),
             vol.Optional(CONF_SAMPLE_DURATION, default=0): cv.positive_int,
             vol.Optional(CONF_MIN_SAMPLES, default=2): cv.positive_int,
+            vol.Optional(CONF_UNIQUE_ID): cv.string,
         }
     ),
     _validate_min_max,
@@ -121,6 +123,7 @@ async def async_setup_platform(
                 min_samples=sensor_config[CONF_MIN_SAMPLES],
                 max_samples=sensor_config[CONF_MAX_SAMPLES],
                 device_class=sensor_config.get(CONF_DEVICE_CLASS),
+                unique_id=sensor_config.get(CONF_UNIQUE_ID),
                 sensor_entity_id=generate_entity_id(
                     ENTITY_ID_FORMAT, sensor_name, hass=hass
                 ),
diff --git a/tests/components/trend/test_binary_sensor.py b/tests/components/trend/test_binary_sensor.py
index 4f19c7e3427..289d7510fbe 100644
--- a/tests/components/trend/test_binary_sensor.py
+++ b/tests/components/trend/test_binary_sensor.py
@@ -48,6 +48,7 @@ async def _setup_legacy_component(hass: HomeAssistant, params: dict[str, Any]) -
 )
 async def test_basic_trend_setup_from_yaml(
     hass: HomeAssistant,
+    entity_registry: er.EntityRegistry,
     states: list[str],
     inverted: bool,
     expected_state: str,
@@ -72,6 +73,43 @@ async def test_basic_trend_setup_from_yaml(
     assert (sensor_state := hass.states.get("binary_sensor.test_trend_sensor"))
     assert sensor_state.state == expected_state
 
+    # Verify that entity without unique_id in YAML is not in the registry
+    entity_entry = entity_registry.async_get("binary_sensor.test_trend_sensor")
+    assert entity_entry is None
+
+
+async def test_trend_setup_from_yaml_with_unique_id(
+    hass: HomeAssistant,
+    entity_registry: er.EntityRegistry,
+) -> None:
+    """Test trend setup from YAML with unique_id."""
+    await _setup_legacy_component(
+        hass,
+        {
+            "friendly_name": "Test state with ID",
+            "entity_id": "sensor.cpu_temp",
+            "unique_id": "my_unique_trend_sensor",
+            "max_samples": 2.0,
+            "min_gradient": 0.0,
+            "sample_duration": 0.0,
+        },
+    )
+
+    # Set some states to ensure the sensor works
+    hass.states.async_set("sensor.cpu_temp", "1")
+    await hass.async_block_till_done()
+    hass.states.async_set("sensor.cpu_temp", "2")
+    await hass.async_block_till_done()
+
+    # Check that the sensor exists and has the correct state
+    assert (sensor_state := hass.states.get("binary_sensor.test_trend_sensor"))
+    assert sensor_state.state == STATE_ON
+
+    # Check that the entity is registered with the correct unique_id
+    entity_entry = entity_registry.async_get("binary_sensor.test_trend_sensor")
+    assert entity_entry is not None
+    assert entity_entry.unique_id == "my_unique_trend_sensor"
+
 
 @pytest.mark.parametrize(
     ("states", "inverted", "expected_state"),