diff --git a/src/components/modal/VacationGrantModal.vue b/src/components/modal/VacationGrantModal.vue
index 206879a..333810e 100644
--- a/src/components/modal/VacationGrantModal.vue
+++ b/src/components/modal/VacationGrantModal.vue
@@ -5,7 +5,7 @@
         <button class="close-btn" @click="closeModal">✖</button>
 
         <div class="modal-body">
-          <p>해당 직원에게 부여할 연차 개수를 선택하세요. (남은 개수: {{ availableQuota }}개)</p>
+          <p>선물할 연차 개수를 선택하세요.</p>
 
           <div class="vacation-control">
             <button @click="decreaseCount" :disabled="grantCount < 2" class="count-btn">-</button>
@@ -129,7 +129,7 @@
     background: white;
     padding: 20px;
     border-radius: 12px;
-    width: 400px;
+    width: 300px;
     box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.15);
     text-align: center;
     position: relative;
diff --git a/src/components/modal/VacationModal.vue b/src/components/modal/VacationModal.vue
index d447ebf..c8e22f2 100644
--- a/src/components/modal/VacationModal.vue
+++ b/src/components/modal/VacationModal.vue
@@ -151,7 +151,7 @@ const closeModal = () => {
     background: white;
     padding: 20px;
     border-radius: 12px;
-    width: 400px;
+    width: 300px;
     box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.15);
     text-align: center;
     position: relative;
@@ -222,4 +222,10 @@ const closeModal = () => {
     color: gray;
     margin-top: 10px;
   }
+
+  /* 모달 본문 스크롤: 높이가 300px 이상이면 스크롤바 표시 */
+.modal-body {
+  max-height: 130px;
+  overflow-y: auto;
+}
   </style>
diff --git a/src/components/vacation/ProfileList.vue b/src/components/vacation/ProfileList.vue
index ae2d257..fb483c4 100644
--- a/src/components/vacation/ProfileList.vue
+++ b/src/components/vacation/ProfileList.vue
@@ -1,6 +1,6 @@
 <template>
     <div class="card-body d-flex justify-content-center">
-      <ul class="list-unstyled d-flex align-items-center gap-5 mb-0 mt-2">
+      <ul class="list-unstyled d-flex flex-wrap align-items-center gap-2 mb-0 mt-2">
         <li
           v-for="(user, index) in sortedUserList"
           :key="index"
@@ -34,8 +34,8 @@
   defineEmits(["profileClick"]);
 
   defineProps({
-  remainingVacationData: Object,
-});
+    remainingVacationData: Object,
+  });
 
   const userStore = useUserInfoStore();
   const userListStore = useUserStore();
@@ -47,28 +47,28 @@
   const userColors = ref({});
 
   onMounted(async () => {
-  await userStore.userInfo();
-  if (userStore.user) {
-    employeeId.value = userStore.user.id;
-  } else {
-    console.error("❌ 로그인한 사용자 정보를 불러오지 못했습니다.");
-  }
+    await userStore.userInfo();
+    if (userStore.user) {
+      employeeId.value = userStore.user.id;
+    } else {
+      console.error("❌ 로그인한 사용자 정보를 불러오지 못했습니다.");
+    }
 
-  await userListStore.fetchUserList();
-  userList.value = userListStore.userList;
+    await userListStore.fetchUserList();
+    userList.value = userListStore.userList;
 
-  // 사용자별 색상 저장
-  userList.value.forEach(user => {
-    userColors.value[user.MEMBERSEQ] = user.usercolor || "#ccc";
-  });
+    // 사용자별 색상 저장
+    userList.value.forEach(user => {
+      userColors.value[user.MEMBERSEQ] = user.usercolor || "#ccc";
+    });
 
-  nextTick(() => {
-    const tooltips = document.querySelectorAll('[data-bs-toggle="tooltip"]');
-    tooltips.forEach(tooltip => {
-      new bootstrap.Tooltip(tooltip);
+    nextTick(() => {
+      const tooltips = document.querySelectorAll('[data-bs-toggle="tooltip"]');
+      tooltips.forEach(tooltip => {
+        new bootstrap.Tooltip(tooltip);
+      });
     });
   });
-});
 
   const sortedUserList = computed(() => {
     if (!employeeId.value) return userList.value; // 로그인한 사용자가 없으면 기존 리스트 반환
@@ -78,6 +78,7 @@
     return myProfile ? [myProfile, ...otherUsers] : userList.value;
   });
 
+  // 프로필 이미지 URL 반환
   const getUserProfileImage = (profilePath) => {
     return profilePath && profilePath.trim()
       ? `${baseUrl}upload/img/profile/${profilePath}`
@@ -92,14 +93,12 @@
     event.target.style.visibility = "visible";
   };
 
-  // 프로필 크기 동적 조정
+  // 프로필 크기 동적 조정: 사이드바 영역에 맞게 조금 더 축소
   const profileSize = computed(() => {
     const totalUsers = userList.value.length;
-
-    if (totalUsers <= 7) return "100px"; // 7명 이하
-    if (totalUsers <= 10) return "80px"; // ~10명
-    if (totalUsers <= 20) return "60px"; // ~20명
-    return "40px"; // 20명 이상
+    if (totalUsers <= 10) return "68px"; // ~10명
+    if (totalUsers <= 15) return "50px"; // ~20명
+    return "30px"; // 20명 이상
   });
 
   // 개별 유저 스타일 적용
@@ -109,18 +108,29 @@
       height: profileSize.value,
       borderWidth: "4px",
       borderColor: user.usercolor || "#ccc",
-        borderStyle: "solid",
+      borderStyle: "solid",
     };
   };
   </script>
 
   <style scoped>
   /* 남은 연차 개수 스타일 */
-.remaining-vacation {
-  display: block;
-  text-align: center;
-  font-size: 14px;
-  color: #333;
-  margin-top: 5px;
-}
+  .remaining-vacation {
+    display: block;
+    text-align: center;
+    font-size: 14px;
+    color: #333;
+    margin-top: 5px;
+  }
+
+  /* ul에 flex-wrap을 적용하여 넘치는 프로필이 다음 줄로 내려가도록 함 */
+  ul {
+    flex-wrap: wrap;
+    justify-content: center;
+  }
+
+  /* li 간 간격 조정 */
+  li {
+    margin: 5px;
+  }
   </style>
diff --git a/src/views/vacation/VacationManagement.vue b/src/views/vacation/VacationManagement.vue
index 4ffa1f8..a9b56e4 100644
--- a/src/views/vacation/VacationManagement.vue
+++ b/src/views/vacation/VacationManagement.vue
@@ -1,43 +1,51 @@
 <template>
-    <div class="vacation-management">
-      <div class="container-xxl flex-grow-1 container-p-y">
-        <div class="card app-calendar-wrapper">
-          <div class="row g-0">
-            <div class="col app-calendar-content">
-              <div class="card shadow-none border-0">
-                <ProfileList
-                  @profileClick="handleProfileClick"
-                  :remainingVacationData="remainingVacationData"
-                />
-                <div class="card-body w-75 p-3 align-self-center">
-                  <!-- 모달에 필터링된 연차 목록 전달 -->
-                  <VacationModal
-                    v-if="isModalOpen"
-                    :isOpen="isModalOpen"
-                    :myVacations="filteredMyVacations"
-                    :receivedVacations="filteredReceivedVacations"
-                    :userColors="userColors"
-                    @close="isModalOpen = false"
-                  />
+    <div class="container-xxl flex-grow-1 container-p-y">
+      <div class="card app-calendar-wrapper">
+        <div class="row g-0">
+          <!-- Sidebar: 사이드바 영역 -->
+          <div class="col-3 app-calendar-sidebar border-end" id="app-calendar-sidebar">
+            <!-- 모달들은 화면 오버레이로 동작하므로 사이드바 내부에 두어도 무방 -->
+            <VacationModal
+              v-if="isModalOpen"
+              :isOpen="isModalOpen"
+              :myVacations="filteredMyVacations"
+              :receivedVacations="filteredReceivedVacations"
+              :userColors="userColors"
+              @close="isModalOpen = false"
+            />
+            <VacationGrantModal
+              v-if="isGrantModalOpen"
+              :isOpen="isGrantModalOpen"
+              :targetUser="selectedUser"
+              :remainingQuota="remainingVacationData[selectedUser?.MEMBERSEQ] || 0"
+              @close="isGrantModalOpen = false"
+              @updateVacation="fetchRemainingVacation"
+            />
+            <div class="sidebar-content">
+              <!-- 사원 프로필 리스트 -->
+              <ProfileList
+                @profileClick="handleProfileClick"
+                :remainingVacationData="remainingVacationData"
+              />
+            </div>
+            <div class="sidebar-actions text-center my-3">
+              <!-- 액션 버튼 -->
+              <HalfDayButtons
+                @toggleHalfDay="toggleHalfDay"
+                @addVacationRequests="saveVacationChanges"
+              />
+            </div>
+          </div>
 
-                  <VacationGrantModal
-                    v-if="isGrantModalOpen"
-                    :isOpen="isGrantModalOpen"
-                    :targetUser="selectedUser"
-                    :remainingQuota="remainingVacationData[selectedUser?.MEMBERSEQ] || 0"
-                    @close="isGrantModalOpen = false"
-                    @updateVacation="fetchRemainingVacation"
-                  />
-                  <full-calendar
-                    ref="fullCalendarRef"
-                    :options="calendarOptions"
-                    class="flatpickr-calendar-only"
-                  />
-                  <HalfDayButtons
-                    @toggleHalfDay="toggleHalfDay"
-                    @addVacationRequests="saveVacationChanges"
-                  />
-                </div>
+          <!-- Main Content: 캘린더 영역 -->
+          <div class="col app-calendar-content">
+            <div class="card shadow-none border-0">
+              <div class="card-body pb-0">
+                <full-calendar
+                  ref="fullCalendarRef"
+                  :options="calendarOptions"
+                  class="flatpickr-calendar-only"
+                />
               </div>
             </div>
           </div>
@@ -46,8 +54,9 @@
     </div>
   </template>
 
+
   <script setup>
-  import { reactive, ref, onMounted, nextTick, computed } from "vue";
+  import { reactive, ref, onMounted, nextTick, computed, watch } from "vue";
   import axios from "@api";
   import FullCalendar from "@fullcalendar/vue3";
   import dayGridPlugin from "@fullcalendar/daygrid";
@@ -71,11 +80,9 @@
   const receivedVacations = ref([]); // 전체 "받은 연차" 목록
   const isModalOpen = ref(false);
   const remainingVacationData = ref({});
-  // 모달을 열 때 기준 연도 (모달에 표시할 연도)
-  const modalYear  = ref(new Date().getFullYear());
-  const modalMonth = ref(String(new Date().getMonth() + 1).padStart(2, "0"));
-  const lastRemainingYear = ref(new Date().getFullYear());
 
+  const lastRemainingYear = ref(new Date().getFullYear());
+  const lastRemainingMonth = ref(String(new Date().getMonth() + 1).padStart(2, "0"));
   const isGrantModalOpen = ref(false);
   const selectedUser = ref(null);
 
@@ -108,6 +115,23 @@
     await fetchRemainingVacation();
   });
 
+  // lastRemainingYear 값이 변경될 때마다 해당 연도의 연차 내역을 재조회
+    watch(lastRemainingYear, async (newYear, oldYear) => {
+    try {
+        const response = await axios.get(`vacation/history?year=${newYear}`);
+        if (response.status === 200 && response.data) {
+        myVacations.value = response.data.data.usedVacations || [];
+        receivedVacations.value = response.data.data.receivedVacations || [];
+        } else {
+        console.warn("❌ 연차 내역을 불러오지 못했습니다.");
+        myVacations.value = [];
+        receivedVacations.value = [];
+        }
+    } catch (error) {
+        console.error("🚨 연차 데이터 불러오기 실패:", error);
+    }
+    });
+
   const fetchRemainingVacation = async () => {
     try {
       const response = await axios.get("vacation/remaining");
@@ -126,6 +150,11 @@
 // 프로필 클릭 시 연차 내역 가져오기
 const handleProfileClick = async (user) => {
   try {
+    // 이미 모달이 열려있다면 토글하여 닫음
+    if (isModalOpen.value) {
+        isModalOpen.value = false;
+        return;
+    }
     if (user.MEMBERSEQ === userStore.user.id) {
       const year = new Date().getFullYear(); // 현재 연도
       // 연도 파라미터를 전달하여 전체 연도의 연차 내역을 조회
@@ -135,12 +164,17 @@ const handleProfileClick = async (user) => {
         receivedVacations.value = response.data.data.receivedVacations || [];
         isModalOpen.value = true;
         // 모달을 열 때 기준 연도 갱신
-        modalYear.value = year;
+        lastRemainingYear.value = year;
         isGrantModalOpen.value = false;
       } else {
         console.warn("❌ 연차 내역을 불러오지 못했습니다.");
       }
     } else {
+      // 이미 모달이 열려있다면 토글하여 닫음
+        if (isGrantModalOpen.value) {
+            isGrantModalOpen.value = false;
+            return;
+        }
       selectedUser.value = user;
       isGrantModalOpen.value = true;
       isModalOpen.value = false;
@@ -187,14 +221,14 @@ const handleProfileClick = async (user) => {
     return vacationCodeMap.value[typeCode] || "기타";
   };
 
-  // computed: modalYear와 일치하는 항목만 필터링
+  // computed: lastRemainingYear과과 일치하는 항목만 필터링
 const filteredMyVacations = computed(() => {
   const filtered = myVacations.value.filter(vac => {
     // vac.date가 없으면 vac.LOCVACUDT를 사용하도록 함
     const dateStr = vac.date || vac.LOCVACUDT;
     const year = dateStr ? dateStr.split("T")[0].substring(0, 4) : null;
-    console.log("vacation year:", year, "modalYear:", modalYear.value);
-    return year === String(modalYear.value);
+    console.log("vacation year:", year, "lastRemainingYear:", lastRemainingYear.value);
+    return year === String(lastRemainingYear.value);
   });
   console.log("filteredMyVacations:", filtered);
   return filtered;
@@ -204,8 +238,8 @@ const filteredReceivedVacations = computed(() => {
   return receivedVacations.value.filter(vac => {
     const dateStr = vac.date || vac.LOCVACUDT;
     const year = dateStr ? dateStr.split("T")[0].substring(0, 4) : null;
-    console.log("vacation year:", year, "modalYear:", modalYear.value);
-    return dateStr && year === String(modalYear.value);
+    console.log("vacation year:", year, "lastRemainingYear:", lastRemainingYear.value);
+    return dateStr && year === String(lastRemainingYear.value);
   });
 });
 
@@ -277,12 +311,12 @@ const filteredReceivedVacations = computed(() => {
     const response = await axios.get(`vacation/list/${year}/${month}`);
     if (response.status === 200) {
       const vacationList = response.data;
-      // 모달이 열려 있더라도 전달받은 연도가 기존 modalYear와 다르면 업데이트
-      if (modalYear.value !== year) {
+      // 모달이 열려 있더라도 전달받은 연도가 기존 lastRemainingYear 다르면 업데이트
+      if (lastRemainingYear.value !== year) {
         myVacations.value = vacationList.filter(
           (vac) => vac.MEMBERSEQ === userStore.user.id
         );
-        modalYear.value = year;
+        lastRemainingYear.value = year;
         // modalMonth는 그대로 유지 (월은 모달 업데이트 조건에서 제외)
       }
       // 캘린더 이벤트 매핑
@@ -359,9 +393,10 @@ const filteredReceivedVacations = computed(() => {
   }
 
   async function loadCalendarData(year, month) {
-    if (lastRemainingYear.value !== year) {
+    if (lastRemainingYear.value !== year || lastRemainingMonth.value !== month) {
       await fetchRemainingVacation();
       lastRemainingYear.value = year;
+      lastRemainingMonth.value = month;
     }
     fetchedEvents.value = [];
     const [vacationEvents, holidayEvents] = await Promise.all([