diff --git a/src/components/PoseDetector.tsx b/src/components/PoseDetector.tsx
index 181f0a5..98b4d06 100644
--- a/src/components/PoseDetector.tsx
+++ b/src/components/PoseDetector.tsx
@@ -1,6 +1,6 @@
 import usePushNotification from "@/hooks/usePushNotification"
 import type { pose } from "@/utils/detector"
-import { detectSlope, detectTextNeck } from "@/utils/detector"
+import { detectHandOnChin, detectSlope, detectTextNeck } from "@/utils/detector"
 import { drawPose } from "@/utils/drawer"
 import { worker } from "@/utils/worker"
 import { useCallback, useEffect, useRef, useState } from "react"
@@ -19,6 +19,7 @@ const PoseDetector: React.FC = () => {
   const [isScriptError, setIsScriptError] = useState<boolean>(false)
   const [isTextNeck, setIsTextNeck] = useState<boolean | null>(null)
   const [isShoulderTwist, setIsShoulderTwist] = useState<boolean | null>(null)
+  const [isHandOnChin, setIsHandOnChin] = useState<boolean | null>(null)
   const [isModelLoaded, setIsModelLoaded] = useState<boolean>(false)
   const [isSnapSaved, setIsSnapSaved] = useState<boolean>(false)
   const [isPopupVisible, setIsPopupVisible] = useState<boolean>(false)
@@ -28,7 +29,7 @@ const PoseDetector: React.FC = () => {
 
   const turtleNeckTimer = useRef<any>(null)
   const shoulderTwistTimer = useRef<any>(null)
-  // const chinUtpTimer = useRef<any>(null)
+  const chinUtpTimer = useRef<any>(null)
   // const tailboneSit = useRef<any>(null)
 
   const canvasRef = useRef<HTMLCanvasElement>(null)
@@ -89,12 +90,14 @@ const PoseDetector: React.FC = () => {
       if (snapRef.current) {
         const _isShoulderTwist = detectSlope(snapRef.current, results, false)
         const _isTextNeck = detectTextNeck(snapRef.current, results, true)
+        const _isHandOnChin = detectHandOnChin(results)
 
         if (_isShoulderTwist !== null) setIsShoulderTwist(_isShoulderTwist)
         if (_isTextNeck !== null) setIsTextNeck(_isTextNeck)
+        if (_isHandOnChin !== null) setIsHandOnChin(_isHandOnChin)
       }
     },
-    [setIsShoulderTwist, setIsTextNeck, showNotification]
+    [setIsShoulderTwist, setIsTextNeck, setIsHandOnChin, showNotification]
   )
 
   const detectStart = useCallback(
@@ -139,8 +142,12 @@ const PoseDetector: React.FC = () => {
     }
   }
 
-  const getIsRight = (_isShoulderTwist: boolean | null, _isTextNeck: boolean | null): boolean => {
-    if (!_isShoulderTwist && !_isTextNeck) return true
+  const getIsRight = (
+    _isShoulderTwist: boolean | null,
+    _isTextNeck: boolean | null,
+    _isHandOnChin: boolean | null
+  ): boolean => {
+    if (!_isShoulderTwist && !_isTextNeck && !_isHandOnChin) return true
     return false
   }
 
@@ -166,6 +173,7 @@ const PoseDetector: React.FC = () => {
 
   usePoseTimer(isTextNeck, "TURTLE_NECK", turtleNeckTimer)
   usePoseTimer(isShoulderTwist, "SHOULDER_TWIST", shoulderTwistTimer)
+  usePoseTimer(isHandOnChin, "CHIN_UTP", chinUtpTimer)
 
   useEffect(() => {
     requestNotificationPermission()
@@ -209,7 +217,7 @@ const PoseDetector: React.FC = () => {
               <div className="absolute top-0 flex w-full items-center justify-center rounded-t-lg bg-[#1A1B1D] bg-opacity-75 p-[20px] text-white">
                 {!isSnapSaved
                   ? "바른 자세를 취한 후, 하단의 버튼을 눌러주세요."
-                  : getIsRight(isShoulderTwist, isTextNeck)
+                  : getIsRight(isShoulderTwist, isTextNeck, isHandOnChin)
                   ? "올바른 자세입니다."
                   : "올바르지 않은 자세입니다."}
               </div>
diff --git a/src/components/Posture/PostrueCrew.tsx b/src/components/Posture/PostrueCrew.tsx
index 13462a8..d5ba39d 100644
--- a/src/components/Posture/PostrueCrew.tsx
+++ b/src/components/Posture/PostrueCrew.tsx
@@ -4,6 +4,7 @@ import PostureGuide from "@assets/icons/posture-guide-button-icon.svg?react"
 import RankingGuideToolTip from "@assets/images/ranking-guide.png"
 import { useEffect, useState } from "react"
 import SelectBox from "@components/SelectBox"
+import { useAuthStore } from "@/store"
 
 interface IPostureCrew {
   groupUserId: number
@@ -19,15 +20,14 @@ interface PostureCrewProps {
 
 export default function PostrueCrew(props: PostureCrewProps) {
   const { toggleSidebar } = props
+  const accessToken = useAuthStore((state) => state.accessToken)
   const [crews, setCrews] = useState<IPostureCrew[]>([])
   const [isConnected, setIsConnected] = useState<"loading" | "success" | "disconnected">("loading")
   const [isEnabled, setIsEnabled] = useState(true)
   const [notiAlarmTime, setNotiAlarmTime] = useState("틀어진 즉시")
 
   useEffect(() => {
-    const token =
-      "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpc3MiOiJoZXJvLWFsaWdubGFiLWFwaSIsImF1ZCI6Imhlcm8tYWxpZ25sYWItYXBpIiwiaWQiOjIwMDAwMSwidHlwZSI6ImFjY2Vzc1Rva2VuIiwiZXhwIjoxNzM1Mzk4MDAwfQ.pIl87yrMX4EVoLlBOG0A2X5AMRRUXalwMKnfH6cSDE8"
-    const socket = new WebSocket(`wss://api.alignlab.site/ws/v1/groups/1/users?X-HERO-AUTH-TOKEN=${token}`)
+    const socket = new WebSocket(`wss://api.alignlab.site/ws/v1/groups/1/users?X-HERO-AUTH-TOKEN=${accessToken}`)
 
     socket.onopen = () => {
       console.log("WebSocket connected")
diff --git a/src/utils/detector.ts b/src/utils/detector.ts
index daef4a8..4b72671 100644
--- a/src/utils/detector.ts
+++ b/src/utils/detector.ts
@@ -184,3 +184,47 @@ export const detectSlope = (refer: pose[], comp: pose[], isSnapShotMode = true):
     return true
   }
 }
+
+/**
+ * 손을 턱에 괴고 있는 자세를 감지하는 함수
+ * @param poses 현재 포즈 데이터 배열
+ * @returns 손을 턱에 대고 있으면 true, 아니면 false, 판단할 수 없으면 null
+ */
+export const detectHandOnChin = (poses: pose[]): boolean | null => {
+  if (!poses || poses.length === 0) return null
+
+  // 필요한 키포인트 추출
+  const nose = getXYfromPose(poses, "nose")
+  const leftEar = getXYfromPose(poses, "left_ear")
+  const rightEar = getXYfromPose(poses, "right_ear")
+  const leftWrist = getXYfromPose(poses, "left_wrist")
+  const rightWrist = getXYfromPose(poses, "right_wrist")
+  const leftShoulder = getXYfromPose(poses, "left_shoulder")
+  const rightShoulder = getXYfromPose(poses, "right_shoulder")
+
+  // 키포인트가 없으면 null 반환
+  if (!nose || !leftEar || !rightEar || !leftWrist || !rightWrist || !leftShoulder || !rightShoulder) return null
+
+  // 턱의 위치를 추정 (코와 귀 중간점의 중간점)
+  const earMidpoint = getMidPoint(leftEar, rightEar)
+  const estimatedChin = getMidPoint(nose, earMidpoint)
+
+  // 어깨 너비 계산
+  const shoulderWidth = getDistance(leftShoulder, rightShoulder)
+
+  // 턱 부근을 판단하기 위한 거리를 어깨 너비의 비율로 설정
+  // 이 비율은 실제 테스트를 통해 조정이 필요할 수 있습니다.
+  const CHIN_PROXIMITY_RATIO = 0.5 // 어깨 너비의 25%
+  const chinProximityThreshold = shoulderWidth * CHIN_PROXIMITY_RATIO
+
+  // 손목과 추정된 턱 위치 사이의 거리 계산
+  const leftWristToChinDistance = getDistance(leftWrist, estimatedChin)
+  const rightWristToChinDistance = getDistance(rightWrist, estimatedChin)
+
+  // 왼손이나 오른손 중 하나라도 턱 근처에 있으면 true 반환
+  if (leftWristToChinDistance < chinProximityThreshold || rightWristToChinDistance < chinProximityThreshold) {
+    return true
+  }
+
+  return false
+}