diff --git a/homeassistant/components/vesync/__init__.py b/homeassistant/components/vesync/__init__.py
index 4951bdb2dc1..f9371d44507 100644
--- a/homeassistant/components/vesync/__init__.py
+++ b/homeassistant/components/vesync/__init__.py
@@ -27,6 +27,7 @@ PLATFORMS = [
     Platform.HUMIDIFIER,
     Platform.LIGHT,
     Platform.NUMBER,
+    Platform.SELECT,
     Platform.SENSOR,
     Platform.SWITCH,
 ]
diff --git a/homeassistant/components/vesync/const.py b/homeassistant/components/vesync/const.py
index 34454081567..897c8d2b745 100644
--- a/homeassistant/components/vesync/const.py
+++ b/homeassistant/components/vesync/const.py
@@ -29,6 +29,10 @@ VS_HUMIDIFIER_MODE_HUMIDITY = "humidity"
 VS_HUMIDIFIER_MODE_MANUAL = "manual"
 VS_HUMIDIFIER_MODE_SLEEP = "sleep"
 
+NIGHT_LIGHT_LEVEL_BRIGHT = "bright"
+NIGHT_LIGHT_LEVEL_DIM = "dim"
+NIGHT_LIGHT_LEVEL_OFF = "off"
+
 VeSyncHumidifierDevice = VeSyncHumid200300S | VeSyncSuperior6000S
 """Humidifier device types"""
 
diff --git a/homeassistant/components/vesync/select.py b/homeassistant/components/vesync/select.py
new file mode 100644
index 00000000000..c266985fc2b
--- /dev/null
+++ b/homeassistant/components/vesync/select.py
@@ -0,0 +1,133 @@
+"""Support for VeSync numeric entities."""
+
+from collections.abc import Callable
+from dataclasses import dataclass
+import logging
+
+from pyvesync.vesyncbasedevice import VeSyncBaseDevice
+
+from homeassistant.components.select import SelectEntity, SelectEntityDescription
+from homeassistant.config_entries import ConfigEntry
+from homeassistant.core import HomeAssistant, callback
+from homeassistant.helpers.dispatcher import async_dispatcher_connect
+from homeassistant.helpers.entity_platform import AddConfigEntryEntitiesCallback
+
+from .common import rgetattr
+from .const import (
+    DOMAIN,
+    NIGHT_LIGHT_LEVEL_BRIGHT,
+    NIGHT_LIGHT_LEVEL_DIM,
+    NIGHT_LIGHT_LEVEL_OFF,
+    VS_COORDINATOR,
+    VS_DEVICES,
+    VS_DISCOVERY,
+)
+from .coordinator import VeSyncDataCoordinator
+from .entity import VeSyncBaseEntity
+
+_LOGGER = logging.getLogger(__name__)
+
+VS_TO_HA_NIGHT_LIGHT_LEVEL_MAP = {
+    100: NIGHT_LIGHT_LEVEL_BRIGHT,
+    50: NIGHT_LIGHT_LEVEL_DIM,
+    0: NIGHT_LIGHT_LEVEL_OFF,
+}
+
+HA_TO_VS_NIGHT_LIGHT_LEVEL_MAP = {
+    v: k for k, v in VS_TO_HA_NIGHT_LIGHT_LEVEL_MAP.items()
+}
+
+
+@dataclass(frozen=True, kw_only=True)
+class VeSyncSelectEntityDescription(SelectEntityDescription):
+    """Class to describe a Vesync select entity."""
+
+    exists_fn: Callable[[VeSyncBaseDevice], bool]
+    current_option_fn: Callable[[VeSyncBaseDevice], str]
+    select_option_fn: Callable[[VeSyncBaseDevice, str], bool]
+
+
+SELECT_DESCRIPTIONS: list[VeSyncSelectEntityDescription] = [
+    VeSyncSelectEntityDescription(
+        key="night_light_level",
+        translation_key="night_light_level",
+        options=list(VS_TO_HA_NIGHT_LIGHT_LEVEL_MAP.values()),
+        icon="mdi:brightness-6",
+        exists_fn=lambda device: rgetattr(device, "night_light"),
+        # The select_option service framework ensures that only options specified are
+        # accepted. ServiceValidationError gets raised for invalid value.
+        select_option_fn=lambda device, value: device.set_night_light_brightness(
+            HA_TO_VS_NIGHT_LIGHT_LEVEL_MAP.get(value, 0)
+        ),
+        # Reporting "off" as the choice for unhandled level.
+        current_option_fn=lambda device: VS_TO_HA_NIGHT_LIGHT_LEVEL_MAP.get(
+            device.details.get("night_light_brightness"), NIGHT_LIGHT_LEVEL_OFF
+        ),
+    ),
+]
+
+
+async def async_setup_entry(
+    hass: HomeAssistant,
+    config_entry: ConfigEntry,
+    async_add_entities: AddConfigEntryEntitiesCallback,
+) -> None:
+    """Set up select entities."""
+
+    coordinator = hass.data[DOMAIN][VS_COORDINATOR]
+
+    @callback
+    def discover(devices):
+        """Add new devices to platform."""
+        _setup_entities(devices, async_add_entities, coordinator)
+
+    config_entry.async_on_unload(
+        async_dispatcher_connect(hass, VS_DISCOVERY.format(VS_DEVICES), discover)
+    )
+
+    _setup_entities(hass.data[DOMAIN][VS_DEVICES], async_add_entities, coordinator)
+
+
+@callback
+def _setup_entities(
+    devices: list[VeSyncBaseDevice],
+    async_add_entities: AddConfigEntryEntitiesCallback,
+    coordinator: VeSyncDataCoordinator,
+):
+    """Add select entities."""
+
+    async_add_entities(
+        VeSyncSelectEntity(dev, description, coordinator)
+        for dev in devices
+        for description in SELECT_DESCRIPTIONS
+        if description.exists_fn(dev)
+    )
+
+
+class VeSyncSelectEntity(VeSyncBaseEntity, SelectEntity):
+    """A class to set numeric options on Vesync device."""
+
+    entity_description: VeSyncSelectEntityDescription
+
+    def __init__(
+        self,
+        device: VeSyncBaseDevice,
+        description: VeSyncSelectEntityDescription,
+        coordinator: VeSyncDataCoordinator,
+    ) -> None:
+        """Initialize the VeSync select device."""
+        super().__init__(device, coordinator)
+        self.entity_description = description
+        self._attr_unique_id = f"{super().unique_id}-{description.key}"
+
+    @property
+    def current_option(self) -> str | None:
+        """Return an option."""
+        return self.entity_description.current_option_fn(self.device)
+
+    async def async_select_option(self, option: str) -> None:
+        """Set an option."""
+        if await self.hass.async_add_executor_job(
+            self.entity_description.select_option_fn, self.device, option
+        ):
+            await self.coordinator.async_request_refresh()
diff --git a/homeassistant/components/vesync/strings.json b/homeassistant/components/vesync/strings.json
index 3eb2a0c3fd5..2232b16329b 100644
--- a/homeassistant/components/vesync/strings.json
+++ b/homeassistant/components/vesync/strings.json
@@ -56,6 +56,16 @@
         "name": "Mist level"
       }
     },
+    "select": {
+      "night_light_level": {
+        "name": "Night light level",
+        "state": {
+          "bright": "Bright",
+          "dim": "Dim",
+          "off": "[%key:common::state::off%]"
+        }
+      }
+    },
     "fan": {
       "vesync": {
         "state_attributes": {
diff --git a/tests/components/vesync/common.py b/tests/components/vesync/common.py
index ee9f9b94052..39a92778727 100644
--- a/tests/components/vesync/common.py
+++ b/tests/components/vesync/common.py
@@ -13,6 +13,7 @@ from tests.common import load_fixture, load_json_object_fixture
 ENTITY_HUMIDIFIER = "humidifier.humidifier_200s"
 ENTITY_HUMIDIFIER_MIST_LEVEL = "number.humidifier_200s_mist_level"
 ENTITY_HUMIDIFIER_HUMIDITY = "sensor.humidifier_200s_humidity"
+ENTITY_HUMIDIFIER_300S_NIGHT_LIGHT_SELECT = "select.humidifier_300s_night_light_level"
 
 ALL_DEVICES = load_json_object_fixture("vesync-devices.json", DOMAIN)
 ALL_DEVICE_NAMES: list[str] = [
diff --git a/tests/components/vesync/conftest.py b/tests/components/vesync/conftest.py
index 9ec7bd23fa5..df6ebbdf6e7 100644
--- a/tests/components/vesync/conftest.py
+++ b/tests/components/vesync/conftest.py
@@ -107,7 +107,7 @@ def outlet_fixture():
 
 @pytest.fixture(name="humidifier")
 def humidifier_fixture():
-    """Create a mock VeSync humidifier fixture."""
+    """Create a mock VeSync Classic200S humidifier fixture."""
     return Mock(
         VeSyncHumid200300S,
         cid="200s-humidifier",
@@ -135,6 +135,34 @@ def humidifier_fixture():
     )
 
 
+@pytest.fixture(name="humidifier_300s")
+def humidifier_300s_fixture():
+    """Create a mock VeSync Classic300S humidifier fixture."""
+    return Mock(
+        VeSyncHumid200300S,
+        cid="300s-humidifier",
+        config={
+            "auto_target_humidity": 40,
+            "display": "true",
+            "automatic_stop": "true",
+        },
+        details={"humidity": 35, "mode": "manual", "night_light_brightness": 50},
+        device_type="Classic300S",
+        device_name="Humidifier 300s",
+        device_status="on",
+        mist_level=6,
+        mist_modes=["auto", "manual"],
+        mode=None,
+        night_light=True,
+        sub_device_no=0,
+        config_module="configModule",
+        connection_status="online",
+        current_firm_version="1.0.0",
+        water_lacks=False,
+        water_tank_lifted=False,
+    )
+
+
 @pytest.fixture(name="humidifier_config_entry")
 async def humidifier_config_entry(
     hass: HomeAssistant, requests_mock: requests_mock.Mocker, config
@@ -155,6 +183,21 @@ async def humidifier_config_entry(
     return entry
 
 
+@pytest.fixture
+async def install_humidifier_device(
+    hass: HomeAssistant,
+    config_entry: ConfigEntry,
+    manager,
+    request: pytest.FixtureRequest,
+) -> None:
+    """Create a mock VeSync config entry with the specified humidifier device."""
+
+    # Install the defined humidifier
+    manager._dev_list["fans"].append(request.getfixturevalue(request.param))
+    await hass.config_entries.async_setup(config_entry.entry_id)
+    await hass.async_block_till_done()
+
+
 @pytest.fixture(name="switch_old_id_config_entry")
 async def switch_old_id_config_entry(
     hass: HomeAssistant, requests_mock: requests_mock.Mocker, config
diff --git a/tests/components/vesync/test_init.py b/tests/components/vesync/test_init.py
index f1fb3931bf9..011545af2ae 100644
--- a/tests/components/vesync/test_init.py
+++ b/tests/components/vesync/test_init.py
@@ -56,6 +56,7 @@ async def test_async_setup_entry__no_devices(
             Platform.HUMIDIFIER,
             Platform.LIGHT,
             Platform.NUMBER,
+            Platform.SELECT,
             Platform.SENSOR,
             Platform.SWITCH,
         ]
@@ -87,6 +88,7 @@ async def test_async_setup_entry__loads_fans(
             Platform.HUMIDIFIER,
             Platform.LIGHT,
             Platform.NUMBER,
+            Platform.SELECT,
             Platform.SENSOR,
             Platform.SWITCH,
         ]
diff --git a/tests/components/vesync/test_select.py b/tests/components/vesync/test_select.py
new file mode 100644
index 00000000000..30c83c89e0e
--- /dev/null
+++ b/tests/components/vesync/test_select.py
@@ -0,0 +1,54 @@
+"""Tests for the select platform."""
+
+import pytest
+
+from homeassistant.components.select import (
+    ATTR_OPTION,
+    DOMAIN as SELECT_DOMAIN,
+    SERVICE_SELECT_OPTION,
+)
+from homeassistant.components.vesync.const import NIGHT_LIGHT_LEVEL_DIM
+from homeassistant.components.vesync.select import HA_TO_VS_NIGHT_LIGHT_LEVEL_MAP
+from homeassistant.const import ATTR_ENTITY_ID
+from homeassistant.core import HomeAssistant
+
+from .common import ENTITY_HUMIDIFIER_300S_NIGHT_LIGHT_SELECT
+
+
+@pytest.mark.parametrize(
+    "install_humidifier_device", ["humidifier_300s"], indirect=True
+)
+async def test_set_nightlight_level(
+    hass: HomeAssistant, manager, humidifier_300s, install_humidifier_device
+) -> None:
+    """Test set of night light level."""
+
+    await hass.services.async_call(
+        SELECT_DOMAIN,
+        SERVICE_SELECT_OPTION,
+        {
+            ATTR_ENTITY_ID: ENTITY_HUMIDIFIER_300S_NIGHT_LIGHT_SELECT,
+            ATTR_OPTION: NIGHT_LIGHT_LEVEL_DIM,
+        },
+        blocking=True,
+    )
+
+    # Assert that setter API was invoked with the expected translated value
+    humidifier_300s.set_night_light_brightness.assert_called_once_with(
+        HA_TO_VS_NIGHT_LIGHT_LEVEL_MAP[NIGHT_LIGHT_LEVEL_DIM]
+    )
+    # Assert that devices were refreshed
+    manager.update_all_devices.assert_called_once()
+
+
+@pytest.mark.parametrize(
+    "install_humidifier_device", ["humidifier_300s"], indirect=True
+)
+async def test_nightlight_level(hass: HomeAssistant, install_humidifier_device) -> None:
+    """Test the state of night light level select entity."""
+
+    # The mocked device has night_light_brightness=50 which is "dim"
+    assert (
+        hass.states.get(ENTITY_HUMIDIFIER_300S_NIGHT_LIGHT_SELECT).state
+        == NIGHT_LIGHT_LEVEL_DIM
+    )