diff --git a/apps/server/src/domains/game/application/services/bot/combat/BotHitStunPolicy.ts b/apps/server/src/domains/game/application/services/bot/combat/BotHitStunPolicy.ts
new file mode 100644
index 0000000..3bffbf0
--- /dev/null
+++ b/apps/server/src/domains/game/application/services/bot/combat/BotHitStunPolicy.ts
@@ -0,0 +1,29 @@
+/**
+ * BotHitStunPolicy
+ * Bot被弾硬直時間の判定と更新時刻計算を提供する
+ */
+
+/** Bot被弾硬直ポリシーの初期化入力 */
+export type BotHitStunPolicyParams = {
+  hitStunMs: number;
+};
+
+/** Bot被弾硬直の判定と次回硬直終了時刻計算を提供する */
+export class BotHitStunPolicy {
+  private readonly hitStunMs: number;
+
+  constructor({ hitStunMs }: BotHitStunPolicyParams) {
+    this.hitStunMs = hitStunMs;
+  }
+
+  /** 現在時刻と硬直終了時刻から硬直中かどうかを判定する */
+  public isStunned(nowMs: number, stunUntilMs: number): boolean {
+    return nowMs < stunUntilMs;
+  }
+
+  /** 現在の硬直終了時刻と被弾時刻から次回硬直終了時刻を計算する */
+  public calculateNextStunUntilMs(currentStunUntilMs: number, nowMs: number): number {
+    const candidateStunUntilMs = nowMs + this.hitStunMs;
+    return Math.max(currentStunUntilMs, candidateStunUntilMs);
+  }
+}
diff --git a/apps/server/src/domains/game/application/services/bot/index.ts b/apps/server/src/domains/game/application/services/bot/index.ts
index 94bd860..9964fa4 100644
--- a/apps/server/src/domains/game/application/services/bot/index.ts
+++ b/apps/server/src/domains/game/application/services/bot/index.ts
@@ -17,3 +17,6 @@
 
 /** Bot爆弾アクションハンドラ生成関数を再公開 */
 export { createBotBombActionHandler } from "./adapters/BotBombActionAdapter.js";
+
+/** Bot被弾硬直ポリシーを再公開 */
+export { BotHitStunPolicy } from "./combat/BotHitStunPolicy.js";
diff --git a/apps/server/src/domains/game/application/services/bot/orchestrators/BotTurnOrchestrator.ts b/apps/server/src/domains/game/application/services/bot/orchestrators/BotTurnOrchestrator.ts
index aa432dd..cf2fb6b 100644
--- a/apps/server/src/domains/game/application/services/bot/orchestrators/BotTurnOrchestrator.ts
+++ b/apps/server/src/domains/game/application/services/bot/orchestrators/BotTurnOrchestrator.ts
@@ -8,6 +8,7 @@
 import { moveTowardsTarget } from "../movement/MovePlanner.js";
 import { chooseNextTarget } from "../policies/TargetSelectionPolicy.js";
 import { decideBombPlacement } from "../policies/BombPlacementPolicy.js";
+import { BotHitStunPolicy } from "../combat/BotHitStunPolicy.js";
 import { BotStateStore } from "../state/BotStateStore.js";
 import type { BotDecision } from "../types/BotTypes.js";
 
@@ -18,6 +19,9 @@
 /** Botの1tick分の意思決定を提供するオーケストレータ */
 export class BotTurnOrchestrator {
   private stateStore = new BotStateStore();
+  private readonly hitStunPolicy = new BotHitStunPolicy({
+    hitStunMs: config.GAME_CONFIG.PLAYER_HIT_STUN_MS,
+  });
 
   public decide(
     botPlayerId: BotPlayerId,
@@ -35,8 +39,21 @@
       targetRow: currentRow,
       lastBombPlacedAtMs: Number.NEGATIVE_INFINITY,
       bombSeq: 0,
+      stunUntilMs: Number.NEGATIVE_INFINITY,
     });
 
+    if (this.hitStunPolicy.isStunned(nowMs, currentState.stunUntilMs)) {
+      this.stateStore.set(botPlayerId, {
+        ...currentState,
+      });
+
+      return {
+        nextX: player.x,
+        nextY: player.y,
+        placeBombPayload: null,
+      };
+    }
+
     const targetCenterX = currentState.targetCol + 0.5;
     const targetCenterY = currentState.targetRow + 0.5;
     const reachedTarget =
@@ -69,6 +86,7 @@
       targetRow: nextTarget.row,
       bombSeq: bombDecision.nextBombSeq,
       lastBombPlacedAtMs: bombDecision.nextLastBombPlacedAtMs,
+      stunUntilMs: currentState.stunUntilMs,
     });
 
     return {
@@ -78,6 +96,19 @@
     };
   }
 
+  /** 指定Botへ被弾硬直を適用する */
+  public applyHitStun(botPlayerId: BotPlayerId, nowMs: number): void {
+    this.stateStore.update(botPlayerId, (state) => {
+      return {
+        ...state,
+        stunUntilMs: this.hitStunPolicy.calculateNextStunUntilMs(
+          state.stunUntilMs,
+          nowMs,
+        ),
+      };
+    });
+  }
+
   public clear(): void {
     this.stateStore.clear();
   }
diff --git a/apps/server/src/domains/game/application/services/bot/state/BotStateStore.ts b/apps/server/src/domains/game/application/services/bot/state/BotStateStore.ts
index 802f4cf..17abae5 100644
--- a/apps/server/src/domains/game/application/services/bot/state/BotStateStore.ts
+++ b/apps/server/src/domains/game/application/services/bot/state/BotStateStore.ts
@@ -17,6 +17,19 @@
     this.states.set(botPlayerId, state);
   }
 
+  /** 既存状態がある場合のみ更新関数を適用する */
+  public update(
+    botPlayerId: BotPlayerId,
+    updater: (state: BotState) => BotState,
+  ): void {
+    const current = this.states.get(botPlayerId);
+    if (!current) {
+      return;
+    }
+
+    this.states.set(botPlayerId, updater(current));
+  }
+
   public clear(): void {
     this.states.clear();
   }
diff --git a/apps/server/src/domains/game/application/services/bot/types/BotTypes.ts b/apps/server/src/domains/game/application/services/bot/types/BotTypes.ts
index fb3ebf3..8e95cd0 100644
--- a/apps/server/src/domains/game/application/services/bot/types/BotTypes.ts
+++ b/apps/server/src/domains/game/application/services/bot/types/BotTypes.ts
@@ -10,6 +10,7 @@
   targetRow: number;
   lastBombPlacedAtMs: number;
   bombSeq: number;
+  stunUntilMs: number;
 };
 
 /** 移動先のグリッド座標 */