diff --git a/custom_components/fn_nas/binary_sensor.py b/custom_components/fn_nas/binary_sensor.py
new file mode 100644
index 0000000..50ba7de
--- /dev/null
+++ b/custom_components/fn_nas/binary_sensor.py
@@ -0,0 +1,72 @@
+import logging
+from homeassistant.components.binary_sensor import BinarySensorEntity, BinarySensorDeviceClass
+from homeassistant.helpers.update_coordinator import CoordinatorEntity
+from .const import (
+    DOMAIN, HDD_HEALTH, DEVICE_ID_NAS, DATA_UPDATE_COORDINATOR
+)
+
+_LOGGER = logging.getLogger(__name__)
+
+async def async_setup_entry(hass, config_entry, async_add_entities):
+    domain_data = hass.data[DOMAIN][config_entry.entry_id]
+    coordinator = domain_data[DATA_UPDATE_COORDINATOR]
+    
+    entities = []
+    existing_ids = set()
+    
+    # 添加硬盘健康状态二元传感器
+    for disk in coordinator.data.get("disks", []):
+        health_uid = f"{config_entry.entry_id}_{disk['device']}_health_binary"
+        if health_uid not in existing_ids:
+            entities.append(
+                DiskHealthBinarySensor(
+                    coordinator, 
+                    disk["device"], 
+                    f"硬盘 {disk.get('model', '未知')} 健康状态",
+                    health_uid,
+                    disk
+                )
+            )
+            existing_ids.add(health_uid)
+    
+    async_add_entities(entities)
+
+
+class DiskHealthBinarySensor(CoordinatorEntity, BinarySensorEntity):
+    def __init__(self, coordinator, device_id, name, unique_id, disk_info):
+        super().__init__(coordinator)
+        self.device_id = device_id
+        self._attr_name = name
+        self._attr_unique_id = unique_id
+        self.disk_info = disk_info
+        self._attr_device_info = {
+            "identifiers": {(DOMAIN, f"disk_{device_id}")},
+            "name": disk_info.get("model", "未知硬盘"),
+            "manufacturer": "硬盘设备",
+            "via_device": (DOMAIN, DEVICE_ID_NAS)
+        }
+        self._attr_device_class = BinarySensorDeviceClass.PROBLEM
+    
+    @property
+    def is_on(self):
+        """返回True表示有问题，False表示正常"""
+        for disk in self.coordinator.data.get("disks", []):
+            if disk["device"] == self.device_id:
+                health = disk.get("health", "未知")
+                # 将健康状态映射为二元状态
+                if health in ["正常", "良好", "OK", "ok", "good", "Good"]:
+                    return False  # 正常状态
+                elif health in ["警告", "异常", "错误", "warning", "Warning", "error", "Error", "bad", "Bad"]:
+                    return True   # 有问题状态
+                else:
+                    # 未知状态也视为有问题
+                    return True
+        return True  # 默认视为有问题
+    
+    @property
+    def icon(self):
+        """根据状态返回图标"""
+        if self.is_on:
+            return "mdi:alert-circle"  # 有问题时显示警告图标
+        else:
+            return "mdi:check-circle"   # 正常时显示对勾图标
\ No newline at end of file
diff --git a/custom_components/fn_nas/const.py b/custom_components/fn_nas/const.py
index a7acffe..33f1ba7 100644
--- a/custom_components/fn_nas/const.py
+++ b/custom_components/fn_nas/const.py
@@ -3,6 +3,7 @@ from homeassistant.const import Platform
 DOMAIN = "fn_nas"
 PLATFORMS = [
     Platform.SENSOR,
+    Platform.BINARY_SENSOR,
     Platform.SWITCH,
     Platform.BUTTON
 ]
diff --git a/custom_components/fn_nas/sensor.py b/custom_components/fn_nas/sensor.py
index 9033be7..34546b9 100644
--- a/custom_components/fn_nas/sensor.py
+++ b/custom_components/fn_nas/sensor.py
@@ -3,8 +3,8 @@ from homeassistant.components.sensor import SensorEntity, SensorDeviceClass, Sen
 from homeassistant.helpers.update_coordinator import CoordinatorEntity
 from homeassistant.const import UnitOfTemperature
 from .const import (
-    DOMAIN, HDD_TEMP, HDD_HEALTH, HDD_STATUS, SYSTEM_INFO, ICON_DISK, 
-    ICON_TEMPERATURE, ICON_HEALTH, ATTR_DISK_MODEL, ATTR_SERIAL_NO,
+    DOMAIN, HDD_TEMP, HDD_STATUS, SYSTEM_INFO, ICON_DISK, 
+    ICON_TEMPERATURE, ATTR_DISK_MODEL, ATTR_SERIAL_NO,
     ATTR_POWER_ON_HOURS, ATTR_TOTAL_CAPACITY, ATTR_HEALTH_STATUS,
     DEVICE_ID_NAS, DATA_UPDATE_COORDINATOR
 )
@@ -38,22 +38,7 @@ async def async_setup_entry(hass, config_entry, async_add_entities):
             )
             existing_ids.add(temp_uid)
         
-        # 健康状态传感器
-        health_uid = f"{config_entry.entry_id}_{disk['device']}_health"
-        if health_uid not in existing_ids:
-            entities.append(
-                DiskSensor(
-                    coordinator, 
-                    disk["device"], 
-                    HDD_HEALTH,
-                    f"硬盘 {disk.get('model', '未知')} 健康状态",
-                    health_uid,
-                    None,
-                    ICON_HEALTH,
-                    disk
-                )
-            )
-            existing_ids.add(health_uid)
+
         
         # 硬盘状态传感器
         status_uid = f"{config_entry.entry_id}_{disk['device']}_status"
@@ -314,9 +299,7 @@ class DiskSensor(CoordinatorEntity, SensorEntity):
                     elif isinstance(temp, (int, float)):
                         return temp
                     return None
-                elif self.sensor_type == HDD_HEALTH:
-                    health = disk.get("health", "未知")
-                    return health if health != "未知" else "未知状态"
+
                 elif self.sensor_type == HDD_STATUS:
                     return disk.get("status", "未知")
         return None