diff --git a/components/BottomSheetMonthPicker.vue b/components/BottomSheetMonthPicker.vue
new file mode 100644
index 0000000..de281fb
--- /dev/null
+++ b/components/BottomSheetMonthPicker.vue
@@ -0,0 +1,87 @@
+<template>
+  <Teleport to="body">
+    <Transition
+      enter-active-class="transition duration-200 ease-out"
+      enter-from-class="opacity-0"
+      enter-to-class="opacity-100"
+      leave-active-class="transition duration-150 ease-in"
+      leave-from-class="opacity-100"
+      leave-to-class="opacity-0"
+    >
+      <div v-if="open" class="fixed inset-0 z-40 bg-ink/35" @click="close" />
+    </Transition>
+
+    <Transition
+      enter-active-class="transition duration-200 ease-out"
+      enter-from-class="translate-y-full"
+      enter-to-class="translate-y-0"
+      leave-active-class="transition duration-150 ease-in"
+      leave-from-class="translate-y-0"
+      leave-to-class="translate-y-full"
+    >
+      <section v-if="open" class="fixed inset-x-0 bottom-0 z-50 mx-auto max-w-lg rounded-t-2xl bg-white shadow-2xl">
+        <div class="border-b border-line px-4 pb-3 pt-2">
+          <div class="mx-auto mb-3 h-1 w-10 rounded-full bg-line" />
+          <div class="flex items-center justify-between">
+            <h2 class="text-base font-bold">월 선택</h2>
+            <button type="button" class="text-sm font-semibold text-muted" @click="close">닫기</button>
+          </div>
+        </div>
+
+        <div class="flex items-center justify-between px-4 py-4">
+          <button class="flex h-9 w-9 items-center justify-center rounded-md active:bg-paper" type="button" aria-label="이전 년도" @click="pickerYear--">
+            <img class="h-6 w-6 opacity-70" src="~/assets/icons/keyboard_arrow_left.svg" alt="">
+          </button>
+          <strong class="text-xl">{{ pickerYear }}</strong>
+          <button class="flex h-9 w-9 items-center justify-center rounded-md active:bg-paper" type="button" aria-label="다음 년도" @click="pickerYear++">
+            <img class="h-6 w-6 opacity-70" src="~/assets/icons/keyboard_arrow_right.svg" alt="">
+          </button>
+        </div>
+
+        <div class="grid grid-cols-4 gap-y-2 px-4 pb-6">
+          <button
+            v-for="month in 12"
+            :key="month"
+            type="button"
+            class="rounded-md py-3 text-base font-bold"
+            :class="isSelected(month) ? 'bg-red-50 text-red-500' : 'active:bg-paper'"
+            @click="select(month)"
+          >
+            {{ month }}월
+          </button>
+        </div>
+      </section>
+    </Transition>
+  </Teleport>
+</template>
+
+<script setup lang="ts">
+const props = defineProps<{
+  modelValue: string
+  open: boolean
+}>()
+
+const emit = defineEmits<{
+  'update:modelValue': [value: string]
+  'update:open': [value: boolean]
+}>()
+
+const pickerYear = ref(Number(props.modelValue.slice(0, 4)))
+
+watch(() => props.open, (open) => {
+  if (open) pickerYear.value = Number(props.modelValue.slice(0, 4))
+})
+
+function isSelected(month: number) {
+  return props.modelValue === `${pickerYear.value}-${String(month).padStart(2, '0')}`
+}
+
+function select(month: number) {
+  emit('update:modelValue', `${pickerYear.value}-${String(month).padStart(2, '0')}`)
+  close()
+}
+
+function close() {
+  emit('update:open', false)
+}
+</script>
diff --git a/docs/changelog.md b/docs/changelog.md
index 364fd52..d174b49 100644
--- a/docs/changelog.md
+++ b/docs/changelog.md
@@ -32,3 +32,4 @@
 - SVG 메뉴 아이콘이 사각형으로 보이는 문제를 수정하고 활성 아이콘 배경을 추가했다.
 - 내역 검색과 유형/자산/카테고리 필터 바텀 시트를 구현했다.
 - 거래 목록 API에 검색어, 유형, 자산, 카테고리 필터 query를 추가했다.
+- 월 선택 바텀 시트를 공통 컴포넌트로 분리하고 내역, 통계, 자산 화면에 적용했다.
diff --git a/pages/assets.vue b/pages/assets.vue
index 38b8291..7c2ff5f 100644
--- a/pages/assets.vue
+++ b/pages/assets.vue
@@ -107,43 +107,7 @@
       </div>
     </div>
 
-    <Teleport to="body">
-      <Transition enter-active-class="transition duration-200 ease-out" enter-from-class="opacity-0" enter-to-class="opacity-100" leave-active-class="transition duration-150 ease-in" leave-from-class="opacity-100" leave-to-class="opacity-0">
-        <div v-if="monthPickerOpen" class="fixed inset-0 z-40 bg-ink/35" @click="monthPickerOpen = false" />
-      </Transition>
-      <Transition enter-active-class="transition duration-200 ease-out" enter-from-class="translate-y-full" enter-to-class="translate-y-0" leave-active-class="transition duration-150 ease-in" leave-from-class="translate-y-0" leave-to-class="translate-y-full">
-        <section v-if="monthPickerOpen" class="fixed inset-x-0 bottom-0 z-50 mx-auto max-w-lg rounded-t-2xl bg-white shadow-2xl">
-          <div class="border-b border-line px-4 pb-3 pt-2">
-            <div class="mx-auto mb-3 h-1 w-10 rounded-full bg-line" />
-            <div class="flex items-center justify-between">
-              <h2 class="text-lg font-bold">월 선택</h2>
-              <button type="button" class="text-sm font-semibold text-muted" @click="monthPickerOpen = false">닫기</button>
-            </div>
-          </div>
-          <div class="flex items-center justify-between px-4 py-4">
-            <button class="flex h-9 w-9 items-center justify-center rounded-md active:bg-paper" type="button" @click="pickerYear--" aria-label="이전 년도">
-              <img class="h-6 w-6 opacity-70" src="~/assets/icons/keyboard_arrow_left.svg" alt="">
-            </button>
-            <strong class="text-xl">{{ pickerYear }}</strong>
-            <button class="flex h-9 w-9 items-center justify-center rounded-md active:bg-paper" type="button" @click="pickerYear++" aria-label="다음 년도">
-              <img class="h-6 w-6 opacity-70" src="~/assets/icons/keyboard_arrow_right.svg" alt="">
-            </button>
-          </div>
-          <div class="grid grid-cols-4 gap-y-2 px-4 pb-6">
-            <button
-              v-for="month in 12"
-              :key="month"
-              type="button"
-              class="rounded-md py-3 text-base font-bold"
-              :class="isSelectedPickerMonth(month) ? 'bg-red-50 text-red-500' : 'active:bg-paper'"
-              @click="selectPickerMonth(month)"
-            >
-              {{ month }}월
-            </button>
-          </div>
-        </section>
-      </Transition>
-    </Teleport>
+    <BottomSheetMonthPicker v-model="selectedMonth" v-model:open="monthPickerOpen" />
   </section>
 </template>
 
@@ -154,7 +118,6 @@ import type { Transaction } from '~/composables/useMoney'
 const selectedMonth = ref(monthKey())
 const selectedAssetId = ref('')
 const monthPickerOpen = ref(false)
-const pickerYear = ref(Number(selectedMonth.value.slice(0, 4)))
 const { data: assetData } = await useFetch('/api/assets', { query: { month: selectedMonth } })
 const { data: transactionData } = await useFetch('/api/transactions', { query: { month: selectedMonth } })
 
@@ -198,22 +161,8 @@ const groupedTransactions = computed(() => {
   return Array.from(groups.values()).sort((a, b) => b.date.localeCompare(a.date))
 })
 
-watch(monthPickerOpen, (open) => {
-  if (open) pickerYear.value = Number(selectedMonth.value.slice(0, 4))
-})
-
 function moveMonth(amount: number) {
   const date = parse(selectedMonth.value, 'yyyy-MM', new Date())
   selectedMonth.value = format(addMonths(date, amount), 'yyyy-MM')
 }
-
-function isSelectedPickerMonth(month: number) {
-  return selectedMonth.value === `${pickerYear.value}-${String(month).padStart(2, '0')}`
-}
-
-function selectPickerMonth(month: number) {
-  selectedMonth.value = `${pickerYear.value}-${String(month).padStart(2, '0')}`
-  monthPickerOpen.value = false
-}
-
 </script>
diff --git a/pages/index.vue b/pages/index.vue
index fec8284..4653197 100644
--- a/pages/index.vue
+++ b/pages/index.vue
@@ -29,7 +29,7 @@
           <button type="button" class="flex h-8 w-8 items-center justify-center rounded-md active:bg-paper" aria-label="이전 달" @click="moveMonth(-1)">
             <img class="h-6 w-6 opacity-70" src="~/assets/icons/keyboard_arrow_left.svg" alt="">
           </button>
-          <button type="button" class="text-2xl font-extrabold active:opacity-70" @click="selectedDate = formatDateOnly()">
+          <button type="button" class="text-2xl font-extrabold active:opacity-70" @click="monthPickerOpen = true">
             {{ displayMonth }}
           </button>
           <button type="button" class="flex h-8 w-8 items-center justify-center rounded-md active:bg-paper" aria-label="다음 달" @click="moveMonth(1)">
@@ -172,6 +172,8 @@
         </section>
       </Transition>
     </Teleport>
+
+    <BottomSheetMonthPicker v-model="selectedMonthModel" v-model:open="monthPickerOpen" />
   </section>
 </template>
 
@@ -183,6 +185,7 @@ const selectedDate = ref(formatDateOnly())
 const weekSwipeStartX = ref(0)
 const searchOpen = ref(false)
 const filterSheetOpen = ref(false)
+const monthPickerOpen = ref(false)
 const searchKeyword = ref('')
 const filters = reactive({
   type: '',
@@ -190,6 +193,12 @@ const filters = reactive({
   categoryId: ''
 })
 const selectedMonth = computed(() => monthKey(parse(selectedDate.value, 'yyyy-MM-dd', new Date())))
+const selectedMonthModel = computed({
+  get: () => selectedMonth.value,
+  set: (value: string) => {
+    selectedDate.value = `${value}-01`
+  }
+})
 const previousMonth = computed(() => {
   const date = parse(selectedMonth.value, 'yyyy-MM', new Date())
   return format(addMonths(date, -1), 'yyyy-MM')
diff --git a/pages/stats.vue b/pages/stats.vue
index 83619f6..9f00027 100644
--- a/pages/stats.vue
+++ b/pages/stats.vue
@@ -84,40 +84,7 @@
 
     <Teleport to="body">
       <Transition enter-active-class="transition duration-200 ease-out" enter-from-class="opacity-0" enter-to-class="opacity-100" leave-active-class="transition duration-150 ease-in" leave-from-class="opacity-100" leave-to-class="opacity-0">
-        <div v-if="monthPickerOpen || periodSheetOpen" class="fixed inset-0 z-40 bg-ink/35" @click="closeSheets" />
-      </Transition>
-
-      <Transition enter-active-class="transition duration-200 ease-out" enter-from-class="translate-y-full" enter-to-class="translate-y-0" leave-active-class="transition duration-150 ease-in" leave-from-class="translate-y-0" leave-to-class="translate-y-full">
-        <section v-if="monthPickerOpen" class="fixed inset-x-0 bottom-0 z-50 mx-auto max-w-lg rounded-t-2xl bg-white shadow-2xl">
-          <div class="border-b border-line px-4 pb-3 pt-2">
-            <div class="mx-auto mb-3 h-1 w-10 rounded-full bg-line" />
-            <div class="flex items-center justify-between">
-              <h2 class="text-lg font-bold">월 선택</h2>
-              <button type="button" class="text-sm font-semibold text-muted" @click="monthPickerOpen = false">닫기</button>
-            </div>
-          </div>
-          <div class="flex items-center justify-between px-4 py-4">
-            <button class="flex h-9 w-9 items-center justify-center rounded-md active:bg-paper" type="button" @click="pickerYear--" aria-label="이전 년도">
-              <img class="h-6 w-6 opacity-70" src="~/assets/icons/keyboard_arrow_left.svg" alt="">
-            </button>
-            <strong class="text-xl">{{ pickerYear }}</strong>
-            <button class="flex h-9 w-9 items-center justify-center rounded-md active:bg-paper" type="button" @click="pickerYear++" aria-label="다음 년도">
-              <img class="h-6 w-6 opacity-70" src="~/assets/icons/keyboard_arrow_right.svg" alt="">
-            </button>
-          </div>
-          <div class="grid grid-cols-4 gap-y-2 px-4 pb-6">
-            <button
-              v-for="month in 12"
-              :key="month"
-              type="button"
-              class="rounded-md py-3 text-base font-bold"
-              :class="isSelectedPickerMonth(month) ? 'bg-red-50 text-red-500' : 'active:bg-paper'"
-              @click="selectPickerMonth(month)"
-            >
-              {{ month }}월
-            </button>
-          </div>
-        </section>
+        <div v-if="periodSheetOpen" class="fixed inset-0 z-40 bg-ink/35" @click="periodSheetOpen = false" />
       </Transition>
 
       <Transition enter-active-class="transition duration-200 ease-out" enter-from-class="translate-y-full" enter-to-class="translate-y-0" leave-active-class="transition duration-150 ease-in" leave-from-class="translate-y-0" leave-to-class="translate-y-full">
@@ -139,6 +106,8 @@
         </section>
       </Transition>
     </Teleport>
+
+    <BottomSheetMonthPicker v-model="selectedMonth" v-model:open="monthPickerOpen" />
   </section>
 </template>
 
@@ -151,7 +120,6 @@ const selectedMonth = ref(monthKey())
 const selectedType = ref<StatType>('expense')
 const monthPickerOpen = ref(false)
 const periodSheetOpen = ref(false)
-const pickerYear = ref(Number(selectedMonth.value.slice(0, 4)))
 const { data } = await useFetch('/api/transactions', { query: { month: selectedMonth } })
 
 const summary = computed(() => data.value?.summary || { income: 0, expense: 0, diff: 0 })
@@ -184,26 +152,8 @@ const categoryTotals = computed(() => {
     .sort((a, b) => b.total - a.total)
 })
 
-watch(monthPickerOpen, (open) => {
-  if (open) pickerYear.value = Number(selectedMonth.value.slice(0, 4))
-})
-
 function moveMonth(amount: number) {
   const date = parse(selectedMonth.value, 'yyyy-MM', new Date())
   selectedMonth.value = format(addMonths(date, amount), 'yyyy-MM')
 }
-
-function isSelectedPickerMonth(month: number) {
-  return selectedMonth.value === `${pickerYear.value}-${String(month).padStart(2, '0')}`
-}
-
-function selectPickerMonth(month: number) {
-  selectedMonth.value = `${pickerYear.value}-${String(month).padStart(2, '0')}`
-  monthPickerOpen.value = false
-}
-
-function closeSheets() {
-  monthPickerOpen.value = false
-  periodSheetOpen.value = false
-}
 </script>
diff --git a/todo.md b/todo.md
index 938ac2a..74eceb2 100644
--- a/todo.md
+++ b/todo.md
@@ -11,7 +11,6 @@
 
 ## 2. 내역 화면
 
-- 월 제목을 누르면 월 선택 바텀 시트가 열리도록 구현한다.
 - 날짜별 수입/지출 표시가 좁은 화면에서도 겹치지 않도록 최종 조정한다.
 - 거래 행 왼쪽 아이콘을 카테고리별 아이콘으로 표시한다.
 - 거래 취소/환불 같은 상태 표시 규칙을 정한다.