diff --git a/homeassistant/components/matter/select.py b/homeassistant/components/matter/select.py
index 2e9c44a8f8a..f6bf75d9e93 100644
--- a/homeassistant/components/matter/select.py
+++ b/homeassistant/components/matter/select.py
@@ -228,18 +228,18 @@ DISCOVERY_SCHEMAS = [
             key="MatterStartUpOnOff",
             entity_category=EntityCategory.CONFIG,
             translation_key="startup_on_off",
-            options=["On", "Off", "Toggle", "Previous"],
+            options=["on", "off", "toggle", "previous"],
             measurement_to_ha={
-                0: "Off",
-                1: "On",
-                2: "Toggle",
-                None: "Previous",
+                0: "off",
+                1: "on",
+                2: "toggle",
+                None: "previous",
             }.get,
             ha_to_native_value={
-                "Off": 0,
-                "On": 1,
-                "Toggle": 2,
-                "Previous": None,
+                "off": 0,
+                "on": 1,
+                "toggle": 2,
+                "previous": None,
             }.get,
         ),
         entity_class=MatterSelectEntity,
diff --git a/homeassistant/components/matter/strings.json b/homeassistant/components/matter/strings.json
index e69c7ae3090..14de4105f40 100644
--- a/homeassistant/components/matter/strings.json
+++ b/homeassistant/components/matter/strings.json
@@ -136,7 +136,13 @@
         "name": "Mode"
       },
       "startup_on_off": {
-        "name": "Power-on behavior on Startup"
+        "name": "Power-on behavior on startup",
+        "state": {
+          "on": "[%key:common::state::on%]",
+          "off": "[%key:common::state::off%]",
+          "toggle": "[%key:common::action::toggle%]",
+          "previous": "Previous"
+        }
       }
     },
     "sensor": {
diff --git a/tests/components/matter/test_select.py b/tests/components/matter/test_select.py
index e380e5d5925..bda2a933d42 100644
--- a/tests/components/matter/test_select.py
+++ b/tests/components/matter/test_select.py
@@ -87,16 +87,16 @@ async def test_attribute_select_entities(
     entity_id = "select.mock_dimmable_light_power_on_behavior_on_startup"
     state = hass.states.get(entity_id)
     assert state
-    assert state.state == "Previous"
-    assert state.attributes["options"] == ["On", "Off", "Toggle", "Previous"]
+    assert state.state == "previous"
+    assert state.attributes["options"] == ["on", "off", "toggle", "previous"]
     assert (
         state.attributes["friendly_name"]
-        == "Mock Dimmable Light Power-on behavior on Startup"
+        == "Mock Dimmable Light Power-on behavior on startup"
     )
     set_node_attribute(light_node, 1, 6, 16387, 1)
     await trigger_subscription_callback(hass, matter_client)
     state = hass.states.get(entity_id)
-    assert state.state == "On"
+    assert state.state == "on"
     # test that an invalid value (e.g. 255) leads to an unknown state
     set_node_attribute(light_node, 1, 6, 16387, 255)
     await trigger_subscription_callback(hass, matter_client)