diff --git a/homeassistant/components/midea/select.py b/homeassistant/components/midea/select.py
index 02f3c0db46a4..b2ef4afcaba0 100644
--- a/homeassistant/components/midea/select.py
+++ b/homeassistant/components/midea/select.py
@@ -21,6 +21,8 @@ class MideaSelectEntityDescription(SelectEntityDescription):
     models: list[DeviceType]
     options_attribute: str
     """Device property name returning the list of valid option strings."""
+    requires_power: bool = False
+    """Entity is only operable while the device's ``power`` attribute is on."""
 
 
 SELECTS: list[MideaSelectEntityDescription] = [
@@ -47,18 +49,21 @@ SELECTS: list[MideaSelectEntityDescription] = [
         translation_key="wind_lr_angle",
         models=[DeviceType.AC],
         options_attribute="wind_lr_angles",
+        requires_power=True,
     ),
     MideaSelectEntityDescription(
         key="wind_ud_angle",
         translation_key="wind_ud_angle",
         models=[DeviceType.AC],
         options_attribute="wind_ud_angles",
+        requires_power=True,
     ),
     MideaSelectEntityDescription(
         key="rate_select",
         translation_key="rate_select",
         models=[DeviceType.AC],
         options_attribute="rate_selects",
+        requires_power=True,
     ),
     MideaSelectEntityDescription(
         key="silent_level",
@@ -126,6 +131,16 @@ class MideaSelect(MideaEntity, SelectEntity):
 
     entity_description: MideaSelectEntityDescription
 
+    @property
+    @override
+    def available(self) -> bool:
+        """Return entity availability."""
+        if not super().available:
+            return False
+        if self.entity_description.requires_power:
+            return bool(self._device.get_attribute("power"))
+        return True
+
     @property
     @override
     def options(self) -> list[str]:
diff --git a/tests/components/midea/test_select.py b/tests/components/midea/test_select.py
index 29259f2cfd86..b6dd04cc09b5 100644
--- a/tests/components/midea/test_select.py
+++ b/tests/components/midea/test_select.py
@@ -22,13 +22,13 @@ from homeassistant.components.select import (
     DOMAIN as SELECT_DOMAIN,
     SERVICE_SELECT_OPTION,
 )
-from homeassistant.const import ATTR_ENTITY_ID, Platform
+from homeassistant.const import ATTR_ENTITY_ID, STATE_UNAVAILABLE, Platform
 from homeassistant.core import HomeAssistant
 from homeassistant.exceptions import HomeAssistantError
 from homeassistant.helpers import entity_registry as er
 
 from . import setup_integration
-from .conftest import DummyDevice, entity_entries
+from .conftest import DummyDevice, SetDeviceAttribute, entity_entries
 from .const import TEST_DEVICE_ID
 
 from tests.common import MockConfigEntry, snapshot_platform
@@ -230,6 +230,45 @@ async def test_ac_angle_and_rate_selects(
     )
 
 
+@pytest.mark.parametrize(
+    "unique_id",
+    [
+        f"{TEST_DEVICE_ID}_wind_lr_angle",
+        f"{TEST_DEVICE_ID}_wind_ud_angle",
+        f"{TEST_DEVICE_ID}_rate_select",
+    ],
+)
+async def test_ac_selects_unavailable_when_power_off(
+    hass: HomeAssistant,
+    mock_config_entry: Callable[[DummyDevice], MockConfigEntry],
+    set_device_attribute: SetDeviceAttribute,
+    unique_id: str,
+) -> None:
+    """Test AC angle/rate selects are unavailable while the unit is powered off."""
+    device = _ac_device()
+    config_entry = mock_config_entry(device)
+    with patch("homeassistant.components.midea._PLATFORMS", [Platform.SELECT]):
+        await setup_integration(hass, config_entry, device)
+
+    entity_id = entity_entries(hass, config_entry)[unique_id].entity_id
+    assert (state := hass.states.get(entity_id)) is not None
+    assert state.state != STATE_UNAVAILABLE
+
+    await set_device_attribute(device, ACAttributes.power, False)
+    assert (state := hass.states.get(entity_id)) is not None
+    assert state.state == STATE_UNAVAILABLE
+
+    await set_device_attribute(device, ACAttributes.power, True)
+    assert (state := hass.states.get(entity_id)) is not None
+    assert state.state != STATE_UNAVAILABLE
+
+    device.available = False
+    device.notify_update({"available": False})
+    await hass.async_block_till_done()
+    assert (state := hass.states.get(entity_id)) is not None
+    assert state.state == STATE_UNAVAILABLE
+
+
 async def test_fa_selects_do_not_overlap_fan_platform(
     hass: HomeAssistant,
     mock_config_entry: Callable[[DummyDevice], MockConfigEntry],