diff --git a/server/app/api/controller/v1/GameController.php b/server/app/api/controller/v1/GameController.php
index f40501a..fe23f7c 100644
--- a/server/app/api/controller/v1/GameController.php
+++ b/server/app/api/controller/v1/GameController.php
@@ -148,7 +148,18 @@ class GameController extends BaseController
             return $this->success($cached);
         }
 
-        $player = DicePlayer::field(self::PLAYER_INFO_DB_FIELDS)->where('username', $username)->where('dept_id', $deptId)->find();
+        try {
+            $logic = new UserLogic();
+            $player = $logic->findOrCreatePlayerByUsername(
+                $username,
+                $this->agentAdminId($request),
+                $deptId > 0 ? $deptId : null
+            );
+        } catch (\plugin\saiadmin\exception\ApiException $e) {
+            return $this->fail($e->getMessage(), ReturnCode::PARAMS_ERROR);
+        }
+
+        $player = DicePlayer::field(self::PLAYER_INFO_DB_FIELDS)->where('id', (int) $player->id)->find();
         if (!$player) {
             return $this->fail('User not found', ReturnCode::PARAMS_ERROR);
         }
diff --git a/server/app/api/logic/UserLogic.php b/server/app/api/logic/UserLogic.php
index 337af64..955a476 100644
--- a/server/app/api/logic/UserLogic.php
+++ b/server/app/api/logic/UserLogic.php
@@ -68,6 +68,54 @@ class UserLogic
         return array_map('intval', $adminIds ?: [(int) $admin->id]);
     }
 
+    /**
+     * 按用户名查找玩家；不存在则创建并绑定渠道/管理员（供 getPlayerInfo 等接口）
+     *
+     * @param int|null $adminId 关联后台管理员 ID（sa_system_user.id）
+     * @param int|null $deptId  所属渠道 ID
+     */
+    public function findOrCreatePlayerByUsername(string $username, ?int $adminId = null, ?int $deptId = null): DicePlayer
+    {
+        $username = trim($username);
+        if ($username === '') {
+            throw new ApiException('username is required');
+        }
+
+        $query = DicePlayer::where('username', $username);
+        if ($deptId !== null && $deptId > 0) {
+            $query->where('dept_id', $deptId);
+        }
+        $player = $query->find();
+        if ($player) {
+            if ((int) ($player->status ?? 1) === 0) {
+                throw new ApiException('Account is disabled');
+            }
+            return $player;
+        }
+
+        $player = new DicePlayer();
+        $player->username = $username;
+        $player->phone = $username;
+        $player->password = $this->hashPassword('123456');
+        $player->status = self::STATUS_NORMAL;
+        $player->coin = 0;
+        if ($deptId !== null && $deptId > 0) {
+            $player->dept_id = $deptId;
+        }
+        if ($adminId !== null && $adminId > 0) {
+            $player->admin_id = $adminId;
+            if ($deptId === null || $deptId <= 0) {
+                $adminUser = SystemUser::find($adminId);
+                if ($adminUser && !empty($adminUser->dept_id)) {
+                    $player->dept_id = $adminUser->dept_id;
+                }
+            }
+        }
+        $player->save();
+
+        return $player;
+    }
+
     /**
      * 登录（JSON：username, password, lang, coin, time）
      * 存在则校验密码并更新 coin（累加）；不存在则创建用户并写入 coin。
diff --git a/server/app/dice/model/player/DicePlayer.php b/server/app/dice/model/player/DicePlayer.php
index 8ea83b8..63c44f9 100644
--- a/server/app/dice/model/player/DicePlayer.php
+++ b/server/app/dice/model/player/DicePlayer.php
@@ -91,19 +91,37 @@ class DicePlayer extends DiceModel
             $lotteryConfigId = null;
         }
         if ($lotteryConfigId === null || $lotteryConfigId === '' || (int) $lotteryConfigId === 0) {
-            $config = DiceLotteryPoolConfig::where('name', 'default')->find();
+            $config = self::findDefaultLotteryConfigForPlayer($model);
             $model->setAttr('lottery_config_id', $config ? (int) $config->id : 0);
         }
         // 彩金池权重默认取 name=default 的奖池配置
         self::setDefaultWeightsFromLotteryConfig($model);
     }
 
+    /**
+     * 按玩家所属渠道查找 default 彩金池配置
+     */
+    protected static function findDefaultLotteryConfigForPlayer(DicePlayer $model): ?DiceLotteryPoolConfig
+    {
+        $query = DiceLotteryPoolConfig::where('name', 'default');
+        try {
+            $deptId = $model->getAttr('dept_id');
+            if ($deptId !== null && $deptId !== '' && $deptId > 0) {
+                $query->where('dept_id', $deptId);
+            }
+        } catch (\Throwable $e) {
+            // ignore
+        }
+
+        return $query->find();
+    }
+
     /**
      * 从 DiceLotteryPoolConfig name=default 取 t1_weight～t5_weight 作为玩家未设置时的默认值
      */
     protected static function setDefaultWeightsFromLotteryConfig(DicePlayer $model): void
     {
-        $config = DiceLotteryPoolConfig::where('name', 'default')->find();
+        $config = self::findDefaultLotteryConfigForPlayer($model);
         if (!$config) {
             return;
         }