diff --git a/src/stores/modules/index.ts b/src/stores/modules/index.ts
index 8f94af6..734618e 100644
--- a/src/stores/modules/index.ts
+++ b/src/stores/modules/index.ts
@@ -1,2 +1,3 @@
 export * from './account.ts'
 export * from './baseLayout.ts'
+export * from './room.ts'
diff --git a/src/stores/modules/room.ts b/src/stores/modules/room.ts
new file mode 100644
index 0000000..b456ca9
--- /dev/null
+++ b/src/stores/modules/room.ts
@@ -0,0 +1,157 @@
+import { defineStore } from 'pinia'
+import { ref, computed } from 'vue'
+import type { RoomDetailResponse, RoomPlayerDetail, MoveItem, RoomStatus } from '@/api/modules/game'
+
+export const useRoomStore = defineStore('room', () => {
+  // ===== 房间基础信息 =====
+  const roomId = ref<string>('')
+  const roomName = ref<string>('')
+  const gameId = ref<string>('')
+  const gameIcon = ref<string>('')
+  const gameName = ref<string>('')
+  const maxPlayers = ref<number>(0)
+  const mode = ref<string>('')
+  const stakes = ref<number>(0)
+  const status = ref<RoomStatus>('waiting')
+  const creatorId = ref<string>('')
+  const creatorName = ref<string>('')
+  const allowSpectate = ref<boolean>(true)
+
+  // ===== 玩家信息 =====
+  const players = ref<RoomPlayerDetail[]>([])
+  /** 当前用户是否为房主 */
+  const isOwner = computed(() => creatorId.value === currentUserId.value)
+
+  // ===== 对局状态 =====
+  const boardState = ref<number[][]>([])
+  const currentTurn = ref<string | null>(null)
+  const moves = ref<MoveItem[]>([])
+  const winner = ref<string | null>(null)
+  const resultType = ref<string | null>(null)
+  /** 是否对局中 */
+  const isPlaying = computed(() => status.value === 'playing')
+  /** 是否已结束 */
+  const isFinished = computed(() => status.value === 'finished')
+
+  // ===== 聊天消息 =====
+  interface ChatMessage {
+    userId: string
+    content: string
+    timestamp: number
+  }
+  const messages = ref<ChatMessage[]>([])
+
+  // ===== 当前用户身份 =====
+  const currentUserId = ref<string>('')
+  /** 当前用户在房间中的身份：player（玩家）| spectator（观战者） */
+  const myRole = ref<'player' | 'spectator'>('spectator')
+  /** 当前用户是否为玩家 */
+  const isPlayer = computed(() => myRole.value === 'player')
+
+  // ===== 求和状态 =====
+  const drawRequested = ref<boolean>(false)
+  const drawRequestFrom = ref<string | null>(null)
+
+  /**
+   * 从房间详情 HTTP 响应初始化 Store
+   * @param detail - 房间详情响应数据
+   * @param userId - 当前用户 ID
+   */
+  function initFromDetail(detail: RoomDetailResponse, userId: string) {
+    roomId.value = detail.roomId
+    roomName.value = detail.name
+    gameId.value = detail.gameId
+    gameIcon.value = detail.gameIcon
+    gameName.value = detail.gameName
+    maxPlayers.value = detail.maxPlayers
+    mode.value = detail.mode
+    stakes.value = detail.stakes
+    status.value = detail.status
+    creatorId.value = detail.creatorId
+    creatorName.value = detail.creatorName
+    allowSpectate.value = detail.allowSpectate
+    players.value = detail.players
+    currentUserId.value = userId
+    boardState.value = detail.boardState ?? []
+    currentTurn.value = detail.currentTurn ?? null
+    moves.value = detail.moves ?? []
+
+    // 判定当前用户是玩家还是观战者
+    const isPlayerInRoom = detail.players.some((p) => p.userId === userId)
+    myRole.value = isPlayerInRoom ? 'player' : 'spectator'
+  }
+
+  /** 更新棋盘状态（WS move 事件） */
+  function applyMove(row: number, col: number, playerId: string, moveIndex: number) {
+    moves.value.push({ moveIndex, playerId, row, col })
+    if (!boardState.value[row]) {
+      boardState.value[row] = []
+    }
+    // 判定棋子颜色：moveIndex 从 1 开始，奇数=黑方(1)，偶数=白方(2)
+    const stone = moveIndex % 2 === 1 ? 1 : 2
+    boardState.value[row][col] = stone
+  }
+
+  /** 更新当前轮次 */
+  function setCurrentTurn(playerId: string | null) {
+    currentTurn.value = playerId
+  }
+
+  /** 添加聊天消息 */
+  function addMessage(msg: ChatMessage) {
+    messages.value.push(msg)
+  }
+
+  /** 更新准备状态 */
+  function updateReady(userId: string, ready: boolean) {
+    const player = players.value.find((p) => p.userId === userId)
+    if (player) {
+      player.ready = ready
+    }
+  }
+
+  /** 玩家加入 */
+  function addPlayer(player: RoomPlayerDetail) {
+    if (!players.value.find((p) => p.userId === player.userId)) {
+      players.value.push(player)
+    }
+  }
+
+  /** 玩家离开 */
+  function removePlayer(userId: string) {
+    players.value = players.value.filter((p) => p.userId !== userId)
+  }
+
+  /** 对局结束 */
+  function setGameOver(winnerId: string | null, type: string) {
+    status.value = 'finished'
+    winner.value = winnerId
+    resultType.value = type
+  }
+
+  /** 重置状态 */
+  function reset() {
+    roomId.value = ''
+    players.value = []
+    boardState.value = []
+    currentTurn.value = null
+    moves.value = []
+    messages.value = []
+    winner.value = null
+    resultType.value = null
+    drawRequested.value = false
+    drawRequestFrom.value = null
+  }
+
+  return {
+    roomId, roomName, gameId, gameIcon, gameName,
+    maxPlayers, mode, stakes, status, creatorId, creatorName, allowSpectate,
+    players, isOwner, currentUserId, myRole, isPlayer,
+    boardState, currentTurn, moves, winner, resultType,
+    isPlaying, isFinished,
+    messages,
+    drawRequested, drawRequestFrom,
+    initFromDetail, applyMove, setCurrentTurn, addMessage,
+    updateReady, addPlayer, removePlayer, setGameOver, reset
+  }
+})