diff --git a/src/components/commuters/CommuterCalendar.vue b/src/components/commuters/CommuterCalendar.vue
index b4c9b15..c0300a7 100644
--- a/src/components/commuters/CommuterCalendar.vue
+++ b/src/components/commuters/CommuterCalendar.vue
@@ -90,9 +90,9 @@ import { useProjectStore } from '@/stores/useProjectStore';
 import CommuterBtn from '@c/commuters/CommuterBtn.vue';
 import CommuterProjectList from '@c/commuters/CommuterProjectList.vue';
 import BackBtn from '@c/button/BackBtn.vue';
-import flatpickr from 'flatpickr';
-import monthSelectPlugin from 'flatpickr/dist/plugins/monthSelect/index';
-import 'flatpickr/dist/plugins/monthSelect/style.css';
+import { useDatePicker } from '@/stores/useDatePicker';
+
+const datePickerStore = useDatePicker();
 
 const baseUrl = $api.defaults.baseURL.replace(/api\/$/, '');
 const user = ref({});
@@ -115,7 +115,6 @@ const commuters = ref([]);
 const monthlyCommuters = ref([]);
 
 const calendarDatepicker = ref(null);
-let fpInstance = null;
 
 // 출퇴근 컴포넌트 이벤트 핸들러
 const handleWorkTimeUpdate = () => {
@@ -390,7 +389,6 @@ const selectedDateCommuters = computed(() => {
         commuter.COMMUTDAY === eventDate.value
     );
 });
-
 onMounted(async () => {
     await fetchData();
     await userStore.userInfo();
@@ -407,65 +405,13 @@ onMounted(async () => {
         checkedInProject.value = storedProject;
     }
 
-    nextTick(() => {
-        // 달력 데이트피커를 위한 input 요소 동적 생성
-        const datePickerInput = document.createElement('input');
-        datePickerInput.type = 'text';
-        datePickerInput.style.display = 'none';
-        document.body.appendChild(datePickerInput);
-        calendarDatepicker.value = datePickerInput;
-
-        // Flatpickr 초기화 (달 선택)
-        fpInstance = flatpickr(calendarDatepicker.value, {
-            dateFormat: "Y-m",
-            plugins: [
-                new monthSelectPlugin({
-                    shorthand: true,
-                    dateFormat: "Y-m",
-                    altFormat: "F Y"
-                })
-            ],
-            onOpen: function() {
-                document.querySelector('.flatpickr-input').style.visibility = 'hidden';
-            },
-            onChange: function(selectedDatesArr, dateStr) {
-                // 선택한 달의 첫날로 달력을 이동
-                fullCalendarRef.value.getApi().gotoDate(dateStr + "-01");
-                const [year, month] = dateStr.split("-");
-                lastRemainingYear.value = parseInt(year, 10);
-                lastRemainingMonth.value = month;
-                loadCalendarData(lastRemainingYear.value, lastRemainingMonth.value);
-            },
-            onClose: function() {
-                calendarDatepicker.value.style.display = "none";
-            }
-        });
-
-        // FullCalendar 년월월(.fc-toolbar-title) 클릭 시 데이트피커 열기
-        const titleEl = document.querySelector('.fc-toolbar-title');
-        if (titleEl) {
-            titleEl.style.cursor = 'pointer';
-            titleEl.addEventListener('click', () => {
-                const rect = titleEl.getBoundingClientRect();
-                const dpEl = calendarDatepicker.value;
-
-                dpEl.style.display = 'block';
-                dpEl.style.position = 'fixed';
-                dpEl.style.top = `${rect.bottom + window.scrollY}px`;
-                dpEl.style.left = `${rect.left + window.scrollX}px`;
-                dpEl.style.transform = 'translate(-50%, -50%)';
-                dpEl.style.zIndex = '9999';
-                dpEl.style.border = 'none';
-                dpEl.style.outline = 'none';
-                dpEl.style.backgroundColor = 'transparent';
-                // 제목의 중앙 아래에 위치하도록 계산
-                // 또는 CSS transform 사용
-                // dpEl.style.setProperty('--left-position', `${rect.left + window.scrollX}px`);
-                // dpEl.style.transform = 'translateX(-50%)';
-                fpInstance.open();
-            });
+    datePickerStore.initDatePicker(
+        fullCalendarRef,
+        async (year, month, options) => {
+            // 데이터 다시 불러오기
+            await fetchData();
         }
-    });
+    );
 });
 </script>
 
diff --git a/src/stores/useDatePicker.js b/src/stores/useDatePicker.js
new file mode 100644
index 0000000..46eef0f
--- /dev/null
+++ b/src/stores/useDatePicker.js
@@ -0,0 +1,95 @@
+/*
+    작성자 : 박지윤
+    작성일 : 2025-03-25
+    수정자 :
+    수정일 :
+    설명   : 달력 데이트 피커
+*/
+
+import { ref } from 'vue';
+import flatpickr from 'flatpickr';
+import monthSelectPlugin from 'flatpickr/dist/plugins/monthSelect/index';
+import 'flatpickr/dist/flatpickr.min.css';
+import 'flatpickr/dist/plugins/monthSelect/style.css';
+
+export function useDatePicker() {
+    let fpInstance = null;
+    const calendarDatepicker = ref(null);
+
+    const initDatePicker = (fullCalendarRef, onDateChange, options = {}) => {
+        // input 요소 동적 생성
+        const datePickerInput = document.createElement('input');
+        datePickerInput.type = 'text';
+        datePickerInput.style.display = 'none';
+        document.body.appendChild(datePickerInput);
+        calendarDatepicker.value = datePickerInput;
+
+        // Flatpickr 초기화
+        fpInstance = flatpickr(calendarDatepicker.value, {
+            dateFormat: "Y-m",
+            plugins: [
+                new monthSelectPlugin({
+                    shorthand: true,
+                    dateFormat: "Y-m",
+                    altFormat: "F Y"
+                })
+            ],
+            onOpen: function() {
+                document.querySelector('.flatpickr-input').style.visibility = 'hidden';
+            },
+            onChange: function(selectedDatesArr, dateStr) {
+                // 선택한 달의 첫날로 달력을 이동
+                if (fullCalendarRef.value) {
+                    fullCalendarRef.value.getApi().gotoDate(dateStr + "-01");
+                }
+
+                const [year, month] = dateStr.split("-");
+
+                // onDateChange가 함수인 경우에만 호출
+                if (typeof onDateChange === 'function') {
+                    onDateChange(parseInt(year, 10), month, options);
+                }
+            },
+            onClose: function() {
+                if (calendarDatepicker.value) {
+                    calendarDatepicker.value.style.display = "none";
+                }
+            },
+            ...options
+        });
+
+        // FullCalendar 년월월(.fc-toolbar-title) 클릭 시 데이트피커 열기
+        const titleEl = document.querySelector('.fc-toolbar-title');
+        if (titleEl) {
+            titleEl.style.cursor = 'pointer';
+            titleEl.addEventListener('click', () => {
+                const rect = titleEl.getBoundingClientRect();
+                const dpEl = calendarDatepicker.value;
+
+                dpEl.style.display = 'block';
+                dpEl.style.position = 'fixed';
+                dpEl.style.top = `${rect.bottom + window.scrollY}px`;
+                dpEl.style.left = `${rect.left + window.scrollX}px`;
+                dpEl.style.transform = 'translate(-50%, -50%)';
+                dpEl.style.zIndex = '9999';
+                dpEl.style.border = 'none';
+                dpEl.style.outline = 'none';
+                dpEl.style.backgroundColor = 'transparent';
+
+                fpInstance.open();
+            });
+        }
+    };
+
+    const closeDatePicker = () => {
+        if (fpInstance) {
+            fpInstance.close();
+        }
+    };
+
+    return {
+        initDatePicker,
+        closeDatePicker,
+        calendarDatepicker
+    };
+}