diff --git a/.coveragerc b/.coveragerc
index ab1e7642836..aa6f63ca915 100644
--- a/.coveragerc
+++ b/.coveragerc
@@ -1116,6 +1116,7 @@ omit =
     homeassistant/components/tuya/climate.py
     homeassistant/components/tuya/const.py
     homeassistant/components/tuya/fan.py
+    homeassistant/components/tuya/humidifier.py
     homeassistant/components/tuya/light.py
     homeassistant/components/tuya/number.py
     homeassistant/components/tuya/scene.py
diff --git a/homeassistant/components/tuya/const.py b/homeassistant/components/tuya/const.py
index bc1bbd49d98..b6564ab9024 100644
--- a/homeassistant/components/tuya/const.py
+++ b/homeassistant/components/tuya/const.py
@@ -92,6 +92,7 @@ PLATFORMS = [
     "camera",
     "climate",
     "fan",
+    "humidifier",
     "light",
     "number",
     "scene",
@@ -141,6 +142,7 @@ class DPCode(str, Enum):
     CUR_CURRENT = "cur_current"  # Actual current
     CUR_POWER = "cur_power"  # Actual power
     CUR_VOLTAGE = "cur_voltage"  # Actual voltage
+    DEHUMIDITY_SET_VALUE = "dehumidify_set_value"
     DOORCONTACT_STATE = "doorcontact_state"  # Status of door window sensor
     ELECTRICITY_LEFT = "electricity_left"
     FAN_DIRECTION = "fan_direction"  # Fan direction
diff --git a/homeassistant/components/tuya/humidifier.py b/homeassistant/components/tuya/humidifier.py
new file mode 100644
index 00000000000..4152399daec
--- /dev/null
+++ b/homeassistant/components/tuya/humidifier.py
@@ -0,0 +1,174 @@
+"""Support for Tuya (de)humidifiers."""
+from __future__ import annotations
+
+from dataclasses import dataclass
+
+from tuya_iot import TuyaDevice, TuyaDeviceManager
+
+from homeassistant.components.humidifier import (
+    DEVICE_CLASS_DEHUMIDIFIER,
+    DEVICE_CLASS_HUMIDIFIER,
+    SUPPORT_MODES,
+    HumidifierEntity,
+    HumidifierEntityDescription,
+)
+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 AddEntitiesCallback
+
+from . import HomeAssistantTuyaData
+from .base import EnumTypeData, IntegerTypeData, TuyaEntity
+from .const import DOMAIN, TUYA_DISCOVERY_NEW, DPCode
+
+
+@dataclass
+class TuyaHumidifierEntityDescription(HumidifierEntityDescription):
+    """Describe an Tuya (de)humidifier entity."""
+
+    # DPCode, to use. If None, the key will be used as DPCode
+    dpcode: DPCode | tuple[DPCode, ...] | None = None
+
+    humidity: DPCode | None = None
+
+
+HUMIDIFIERS: dict[str, TuyaHumidifierEntityDescription] = {
+    # Dehumidifier
+    # https://developer.tuya.com/en/docs/iot/categorycs?id=Kaiuz1vcz4dha
+    "cs": TuyaHumidifierEntityDescription(
+        key=DPCode.SWITCH,
+        dpcode=(DPCode.SWITCH, DPCode.SWITCH_SPRAY),
+        humidity=DPCode.DEHUMIDITY_SET_VALUE,
+        device_class=DEVICE_CLASS_DEHUMIDIFIER,
+    ),
+    # Humidifier
+    # https://developer.tuya.com/en/docs/iot/categoryjsq?id=Kaiuz1smr440b
+    "jsq": TuyaHumidifierEntityDescription(
+        key=DPCode.SWITCH,
+        humidity=DPCode.HUMIDITY_SET,
+        device_class=DEVICE_CLASS_HUMIDIFIER,
+    ),
+}
+
+
+async def async_setup_entry(
+    hass: HomeAssistant, entry: ConfigEntry, async_add_entities: AddEntitiesCallback
+) -> None:
+    """Set up Tuya (de)humidifier dynamically through Tuya discovery."""
+    hass_data: HomeAssistantTuyaData = hass.data[DOMAIN][entry.entry_id]
+
+    @callback
+    def async_discover_device(device_ids: list[str]) -> None:
+        """Discover and add a discovered Tuya (de)humidifier."""
+        entities: list[TuyaHumidifierEntity] = []
+        for device_id in device_ids:
+            device = hass_data.device_manager.device_map[device_id]
+            if description := HUMIDIFIERS.get(device.category):
+                entities.append(
+                    TuyaHumidifierEntity(device, hass_data.device_manager, description)
+                )
+        async_add_entities(entities)
+
+    async_discover_device([*hass_data.device_manager.device_map])
+
+    entry.async_on_unload(
+        async_dispatcher_connect(hass, TUYA_DISCOVERY_NEW, async_discover_device)
+    )
+
+
+class TuyaHumidifierEntity(TuyaEntity, HumidifierEntity):
+    """Tuya (de)humidifier Device."""
+
+    _set_humidity_type: IntegerTypeData | None = None
+    _switch_dpcode: DPCode | None = None
+    entity_description: TuyaHumidifierEntityDescription
+
+    def __init__(
+        self,
+        device: TuyaDevice,
+        device_manager: TuyaDeviceManager,
+        description: TuyaHumidifierEntityDescription,
+    ) -> None:
+        """Init Tuya (de)humidier."""
+        super().__init__(device, device_manager)
+        self.entity_description = description
+        self._attr_unique_id = f"{super().unique_id}{description.key}"
+        self._attr_supported_features = 0
+
+        # Determine main switch DPCode
+        possible_dpcodes = description.dpcode or description.key
+        if isinstance(possible_dpcodes, DPCode) and possible_dpcodes in device.function:
+            self._switch_dpcode = possible_dpcodes
+        elif isinstance(possible_dpcodes, tuple):
+            self._switch_dpcode = next(
+                (dpcode for dpcode in possible_dpcodes if dpcode in device.function),
+                None,
+            )
+
+        # Determine humidity parameters
+        if description.humidity in device.status_range:
+            type_data = IntegerTypeData.from_json(
+                device.status_range[description.humidity].values
+            )
+            self._set_humidity_type = type_data
+            self._attr_min_humidity = int(type_data.min_scaled)
+            self._attr_max_humidity = int(type_data.max_scaled)
+
+        # Determine mode support and provided modes
+        if DPCode.MODE in device.function:
+            self._attr_supported_features |= SUPPORT_MODES
+            self._attr_available_modes = EnumTypeData.from_json(
+                device.function[DPCode.MODE].values
+            ).range
+
+    @property
+    def is_on(self) -> bool:
+        """Return the device is on or off."""
+        if self._switch_dpcode is None:
+            return False
+        return self.device.status.get(self._switch_dpcode, False)
+
+    @property
+    def mode(self) -> str | None:
+        """Return the current mode."""
+        return self.device.status.get(DPCode.MODE)
+
+    @property
+    def target_humidity(self) -> int | None:
+        """Return the humidity we try to reach."""
+        if self._set_humidity_type is None:
+            return None
+
+        humidity = self.device.status.get(self.entity_description.humidity)
+        if humidity is None:
+            return None
+
+        return round(self._set_humidity_type.scale_value(humidity))
+
+    def turn_on(self, **kwargs):
+        """Turn the device on."""
+        self._send_command([{"code": self._switch_dpcode, "value": True}])
+
+    def turn_off(self, **kwargs):
+        """Turn the device off."""
+        self._send_command([{"code": self._switch_dpcode, "value": False}])
+
+    def set_humidity(self, humidity):
+        """Set new target humidity."""
+        if self._set_humidity_type is None:
+            raise RuntimeError(
+                "Cannot set humidity, device doesn't provide methods to set it"
+            )
+
+        self._send_command(
+            [
+                {
+                    "code": self.entity_description.humidity,
+                    "value": self._set_humidity_type.scale_value(humidity),
+                }
+            ]
+        )
+
+    def set_mode(self, mode):
+        """Set new target preset mode."""
+        self._send_command([{"code": DPCode.MODE, "value": mode}])