diff --git a/homeassistant/components/transmission/const.py b/homeassistant/components/transmission/const.py
index 742ef874a35..94296f53a61 100644
--- a/homeassistant/components/transmission/const.py
+++ b/homeassistant/components/transmission/const.py
@@ -1,7 +1,7 @@
 """Constants for the Transmission Bittorent Client component."""
 DOMAIN = "transmission"
 
-SWITCH_TYPES = {"on_off": "Switch", "turtle_mode": "Turtle Mode"}
+SWITCH_TYPES = {"on_off": "Switch", "turtle_mode": "Turtle mode"}
 
 ORDER_NEWEST_FIRST = "newest_first"
 ORDER_OLDEST_FIRST = "oldest_first"
@@ -44,3 +44,7 @@ DATA_UPDATED = "transmission_data_updated"
 EVENT_STARTED_TORRENT = "transmission_started_torrent"
 EVENT_REMOVED_TORRENT = "transmission_removed_torrent"
 EVENT_DOWNLOADED_TORRENT = "transmission_downloaded_torrent"
+
+STATE_UP_DOWN = "up_down"
+STATE_SEEDING = "seeding"
+STATE_DOWNLOADING = "downloading"
diff --git a/homeassistant/components/transmission/sensor.py b/homeassistant/components/transmission/sensor.py
index b1ff20627e1..46d12d6798b 100644
--- a/homeassistant/components/transmission/sensor.py
+++ b/homeassistant/components/transmission/sensor.py
@@ -20,6 +20,9 @@ from .const import (
     CONF_ORDER,
     DOMAIN,
     STATE_ATTR_TORRENT_INFO,
+    STATE_DOWNLOADING,
+    STATE_SEEDING,
+    STATE_UP_DOWN,
     SUPPORTED_ORDER_MODES,
 )
 
@@ -35,14 +38,14 @@ async def async_setup_entry(
     name = config_entry.data[CONF_NAME]
 
     dev = [
-        TransmissionSpeedSensor(tm_client, name, "Down Speed", "download"),
-        TransmissionSpeedSensor(tm_client, name, "Up Speed", "upload"),
+        TransmissionSpeedSensor(tm_client, name, "Down speed", "download"),
+        TransmissionSpeedSensor(tm_client, name, "Up speed", "upload"),
         TransmissionStatusSensor(tm_client, name, "Status"),
-        TransmissionTorrentsSensor(tm_client, name, "Active Torrents", "active"),
-        TransmissionTorrentsSensor(tm_client, name, "Paused Torrents", "paused"),
-        TransmissionTorrentsSensor(tm_client, name, "Total Torrents", "total"),
-        TransmissionTorrentsSensor(tm_client, name, "Completed Torrents", "completed"),
-        TransmissionTorrentsSensor(tm_client, name, "Started Torrents", "started"),
+        TransmissionTorrentsSensor(tm_client, name, "Active torrents", "active"),
+        TransmissionTorrentsSensor(tm_client, name, "Paused torrents", "paused"),
+        TransmissionTorrentsSensor(tm_client, name, "Total torrents", "total"),
+        TransmissionTorrentsSensor(tm_client, name, "Completed torrents", "completed"),
+        TransmissionTorrentsSensor(tm_client, name, "Started torrents", "started"),
     ]
 
     async_add_entities(dev, True)
@@ -123,17 +126,21 @@ class TransmissionSpeedSensor(TransmissionSensor):
 class TransmissionStatusSensor(TransmissionSensor):
     """Representation of a Transmission status sensor."""
 
+    _attr_device_class = SensorDeviceClass.ENUM
+    _attr_options = [STATE_IDLE, STATE_UP_DOWN, STATE_SEEDING, STATE_DOWNLOADING]
+    _attr_translation_key = "transmission_status"
+
     def update(self) -> None:
         """Get the latest data from Transmission and updates the state."""
         if data := self._tm_client.api.data:
             upload = data.uploadSpeed
             download = data.downloadSpeed
             if upload > 0 and download > 0:
-                self._state = "Up/Down"
+                self._state = STATE_UP_DOWN
             elif upload > 0 and download == 0:
-                self._state = "Seeding"
+                self._state = STATE_SEEDING
             elif upload == 0 and download > 0:
-                self._state = "Downloading"
+                self._state = STATE_DOWNLOADING
             else:
                 self._state = STATE_IDLE
         else:
diff --git a/homeassistant/components/transmission/strings.json b/homeassistant/components/transmission/strings.json
index 2cf9fafff48..ed1b2f185a2 100644
--- a/homeassistant/components/transmission/strings.json
+++ b/homeassistant/components/transmission/strings.json
@@ -40,5 +40,17 @@
         }
       }
     }
+  },
+  "entity": {
+    "sensor": {
+      "transmission_status": {
+        "state": {
+          "idle": "Idle",
+          "up_down": "Up/Down",
+          "seeding": "Seeding",
+          "downloading": "Downloading"
+        }
+      }
+    }
   }
 }