diff --git a/src/app/(service)/(my)/my-page/_components/withdrawal-confirm-modal.tsx b/src/app/(service)/(my)/my-page/_components/withdrawal-confirm-modal.tsx
index 6f18a6658..5aa25b616 100644
--- a/src/app/(service)/(my)/my-page/_components/withdrawal-confirm-modal.tsx
+++ b/src/app/(service)/(my)/my-page/_components/withdrawal-confirm-modal.tsx
@@ -3,20 +3,21 @@
 import { cn } from '@/components/common/ui/(shadcn)/lib/utils';
 import Button from '@/components/common/ui/button';
 import { Modal } from '@/components/common/ui/modal';
+import { useWithdrawMemberMutation } from '@/hooks/queries/user/use-withdraw-member-mutation';
 
 interface WithdrawalConfirmModalProps {
   open: boolean;
   onOpenChange: (open: boolean) => void;
 }
 
-// TODO: withdrawal API not yet available — wire DELETE /api/v1/members/me when added
 export default function WithdrawalConfirmModal({
   open,
   onOpenChange,
 }: WithdrawalConfirmModalProps) {
-  const handleConfirm = async () => {
-    // TODO: call DELETE /api/v1/members/me and redirect to /
-    onOpenChange(false);
+  const { mutate: withdraw, isPending } = useWithdrawMemberMutation();
+
+  const handleConfirm = () => {
+    withdraw();
   };
 
   return (
@@ -88,6 +89,7 @@ export default function WithdrawalConfirmModal({
                 color="secondary"
                 size="medium"
                 className="flex-1"
+                disabled={isPending}
                 onClick={() => onOpenChange(false)}
               >
                 취소
@@ -96,9 +98,10 @@ export default function WithdrawalConfirmModal({
                 color="primary"
                 size="medium"
                 className="flex-1"
+                disabled={isPending}
                 onClick={handleConfirm}
               >
-                탈퇴하기
+                {isPending ? '탈퇴 중...' : '탈퇴하기'}
               </Button>
             </div>
           </Modal.Footer>
diff --git a/src/hooks/queries/user/use-withdraw-member-mutation.ts b/src/hooks/queries/user/use-withdraw-member-mutation.ts
new file mode 100644
index 000000000..ef40ff528
--- /dev/null
+++ b/src/hooks/queries/user/use-withdraw-member-mutation.ts
@@ -0,0 +1,25 @@
+import { useMutation } from '@tanstack/react-query';
+import { axiosInstanceV6 } from '@/api/client/axios';
+import { AUTH_ROUTE_PATHS } from '@/features/auth/model/auth-route';
+import { clearClientAuthStateAndRedirect } from '@/features/auth/model/client-auth-cleanup';
+import { useToastStore } from '@/stores/use-toast-store';
+import { analyzeError, sendErrorToSentry } from '@/utils/error-handler';
+
+export const useWithdrawMemberMutation = () => {
+  const showToast = useToastStore((state) => state.showToast);
+
+  return useMutation({
+    mutationFn: () =>
+      axiosInstanceV6.delete('mypage/class/withdraw', {
+        data: { agreedToClassWithdrawalNotice: true },
+      }),
+    onSuccess: () => {
+      clearClientAuthStateAndRedirect(AUTH_ROUTE_PATHS.LANDING);
+    },
+    onError: (error) => {
+      const errorInfo = analyzeError(error);
+      showToast(errorInfo.userMessage, 'error');
+      sendErrorToSentry(errorInfo, { source: 'useWithdrawMemberMutation' });
+    },
+  });
+};