diff --git a/src/main/kotlin/com/github/yeoli/devlog/domain/memo/service/MemoService.kt b/src/main/kotlin/com/github/yeoli/devlog/domain/memo/service/MemoService.kt
index 3778eb5..391b8c1 100644
--- a/src/main/kotlin/com/github/yeoli/devlog/domain/memo/service/MemoService.kt
+++ b/src/main/kotlin/com/github/yeoli/devlog/domain/memo/service/MemoService.kt
@@ -95,9 +95,9 @@ class MemoService(private val project: Project) {
         }
     }
 
-    fun getAllMemos(): List<Memo> {
+    fun getAllMemosOrderByCreatedAt(): List<Memo> {
         try {
-            return memoRepository.getAll()
+            return memoRepository.getAll().sortedBy { it.createdAt }
         } catch (e: Exception) {
             logger.warn("[getAllMemos] 메모 조회 중 알 수 없는 에러가 발생했습니다. ${e.message}", e)
         }
diff --git a/src/main/kotlin/com/github/yeoli/devlog/ui/DevLogPanel.kt b/src/main/kotlin/com/github/yeoli/devlog/ui/DevLogPanel.kt
index e439fd1..c0a421f 100644
--- a/src/main/kotlin/com/github/yeoli/devlog/ui/DevLogPanel.kt
+++ b/src/main/kotlin/com/github/yeoli/devlog/ui/DevLogPanel.kt
@@ -185,7 +185,7 @@ internal class DevLogPanel(
 
     // ---------- 데이터 동기화 ----------
     private fun refreshMemos() {
-        val memos = memoService.getAllMemos()
+        val memos = memoService.getAllMemosOrderByCreatedAt()
         totalRecordCount = memos.size
         timeline.render(memos)
         refreshToolbarActions()
@@ -280,7 +280,7 @@ internal class DevLogPanel(
         if (records.isEmpty()) return
         val ids = records.map { it.id }.toSet()
         if (ids.isEmpty()) return
-        val memos = memoService.getAllMemos().filter { ids.contains(it.id) }
+        val memos = memoService.getAllMemosOrderByCreatedAt().filter { ids.contains(it.id) }
         memoService.removeMemos(memos)
         notifyChange()
         selectedRecordIds.removeAll(ids)
@@ -290,8 +290,8 @@ internal class DevLogPanel(
     private fun getSelectedRecords(): List<Memo> {
         if (selectedRecordIds.isEmpty()) return emptyList()
         val selected = selectedRecordIds.toSet()
-        return memoService.getAllMemos()
-            .sortedBy { it.createdAt }.filter { it.id in selected }
+        return memoService.getAllMemosOrderByCreatedAt()
+            .filter { it.id in selected }
     }
 
     // ---------- 선택/툴바 상태 ----------
diff --git a/src/main/kotlin/com/github/yeoli/devlog/ui/MemoExportPipeline.kt b/src/main/kotlin/com/github/yeoli/devlog/ui/MemoExportPipeline.kt
index 746fd96..0d5bd14 100644
--- a/src/main/kotlin/com/github/yeoli/devlog/ui/MemoExportPipeline.kt
+++ b/src/main/kotlin/com/github/yeoli/devlog/ui/MemoExportPipeline.kt
@@ -19,7 +19,7 @@ class MemoExportPipeline(
     fun buildPayload(recordsOverride: List<Memo>? = null): Payload {
         val memoService = project.getService(MemoService::class.java)
         val memos: List<Memo> = recordsOverride
-            ?: memoService.getAllMemos()
+            ?: memoService.getAllMemosOrderByCreatedAt()
 
         val header = memoService.buildHeader()
         val body = if (memos.isEmpty()) {
diff --git a/src/test/kotlin/com/github/yeoli/devlog/domain/memo/service/MemoServiceTest.kt b/src/test/kotlin/com/github/yeoli/devlog/domain/memo/service/MemoServiceTest.kt
index e317074..c1c7b07 100644
--- a/src/test/kotlin/com/github/yeoli/devlog/domain/memo/service/MemoServiceTest.kt
+++ b/src/test/kotlin/com/github/yeoli/devlog/domain/memo/service/MemoServiceTest.kt
@@ -267,7 +267,7 @@ class MemoServiceTest : BasePlatformTestCase() {
         whenever(memoRepository.getAll()).thenReturn(listOf(memo1, memo2))
 
         // when
-        val result = MemoService(project).getAllMemos()
+        val result = MemoService(project).getAllMemosOrderByCreatedAt()
 
         // then
         assertEquals(2, result.size)
@@ -282,7 +282,7 @@ class MemoServiceTest : BasePlatformTestCase() {
         whenever(memoRepository.getAll()).thenThrow(RuntimeException("DB error"))
 
         // when
-        val result = MemoService(project).getAllMemos()
+        val result = MemoService(project).getAllMemosOrderByCreatedAt()
 
         // then
         assertTrue(result.isEmpty(), "예외 발생 시 빈 리스트를 반환해야 합니다.")