diff --git a/services/room-service/internal/room/service/recovery.go b/services/room-service/internal/room/service/recovery.go
index 289d9724..b39dbddc 100644
--- a/services/room-service/internal/room/service/recovery.go
+++ b/services/room-service/internal/room/service/recovery.go
@@ -327,7 +327,8 @@ func replay(current *state.RoomState, cmd command.Command, committedAtMS int64)
 	case *command.ChangeMicSeat:
 		from, exists := current.SeatByUser(typed.TargetUserID)
 		if !exists {
-			return fmt.Errorf("change_mic_seat replay target is not on seat: %d", typed.TargetUserID)
+			// 换麦位属于麦上用户操作；历史过期命令若晚于下麦/离房恢复到达，当前状态已无源麦位时保持 no-op。
+			return nil
 		}
 		fromIndex := current.SeatIndex(from.SeatNo)
 		toIndex := current.SeatIndex(typed.SeatNo)
@@ -353,7 +354,8 @@ func replay(current *state.RoomState, cmd command.Command, committedAtMS int64)
 	case *command.SetMicMute:
 		seat, exists := current.SeatByUser(typed.TargetUserID)
 		if !exists {
-			return fmt.Errorf("set_mic_mute replay target is not on seat: %d", typed.TargetUserID)
+			// 静音状态只附着在当前麦位会话上；用户已不在麦上时，旧静音命令不能阻断房间恢复。
+			return nil
 		}
 		index := current.SeatIndex(seat.SeatNo)
 		current.MicSeats[index].MicMuted = typed.Muted
diff --git a/services/room-service/internal/room/service/recovery_test.go b/services/room-service/internal/room/service/recovery_test.go
index 4b4e60b8..63b6c4de 100644
--- a/services/room-service/internal/room/service/recovery_test.go
+++ b/services/room-service/internal/room/service/recovery_test.go
@@ -142,3 +142,35 @@ func TestReplayApplyRTCEventSkipsStaleMissingSeat(t *testing.T) {
 		t.Fatalf("stale rtc events must not mutate version, got %d", current.Version)
 	}
 }
+
+func TestReplayChangeMicSeatSkipsStaleMissingSeat(t *testing.T) {
+	current := state.NewRoomState("room-replay-stale-change-seat", 7601, 8, "voice")
+	current.OnlineUsers[7601] = &state.RoomUserState{UserID: 7601, Role: "owner", JoinedAtMS: 1000, LastSeenAtMS: 1000}
+
+	if err := replay(current, &command.ChangeMicSeat{
+		Base:         command.Base{ActorID: 7601, Room: current.RoomID, SentAtMS: 2000},
+		TargetUserID: 7601,
+		SeatNo:       2,
+	}, 2000); err != nil {
+		t.Fatalf("stale change seat without source seat must be skipped: %v", err)
+	}
+	if current.Version != 0 {
+		t.Fatalf("stale change seat must not mutate version, got %d", current.Version)
+	}
+}
+
+func TestReplaySetMicMuteSkipsStaleMissingSeat(t *testing.T) {
+	current := state.NewRoomState("room-replay-stale-mute", 7701, 8, "voice")
+	current.OnlineUsers[7701] = &state.RoomUserState{UserID: 7701, Role: "owner", JoinedAtMS: 1000, LastSeenAtMS: 1000}
+
+	if err := replay(current, &command.SetMicMute{
+		Base:         command.Base{ActorID: 7701, Room: current.RoomID, SentAtMS: 2000},
+		TargetUserID: 7701,
+		Muted:        true,
+	}, 2000); err != nil {
+		t.Fatalf("stale mute without seat must be skipped: %v", err)
+	}
+	if current.Version != 0 {
+		t.Fatalf("stale mute must not mutate version, got %d", current.Version)
+	}
+}