diff --git a/src/pages/employer/shops/[shopId]/notices/[noticeId]/edit.tsx b/src/pages/employer/shops/[shopId]/notices/[noticeId]/edit.tsx
index e69de29..9917ef7 100644
--- a/src/pages/employer/shops/[shopId]/notices/[noticeId]/edit.tsx
+++ b/src/pages/employer/shops/[shopId]/notices/[noticeId]/edit.tsx
@@ -0,0 +1,178 @@
+import { Button, DateInput, Input, Modal, TimeInput } from '@/components/ui';
+import useAuth from '@/hooks/useAuth';
+import axiosInstance from '@/lib/axios';
+import { useRouter } from 'next/router';
+import { useEffect, useState } from 'react';
+
+interface NoticePayload {
+  hourlyPay: number;
+  startsAt: string;
+  workhour: number;
+  description: string;
+}
+
+const EmployerNoticeEditPage = () => {
+  const router = useRouter();
+  const { user } = useAuth();
+  const { noticeId } = router.query;
+
+  const [wage, setWage] = useState('');
+  const [date, setDate] = useState<Date | null>(null);
+  const [time, setTime] = useState<Date | null>(null);
+  const [workhour, setWorkhour] = useState<number>();
+  const [description, setDescription] = useState('');
+
+  const [loading, setLoading] = useState(true);
+  const [modalOpen, setModalOpen] = useState(false);
+
+  useEffect(() => {
+    if (!user) return;
+    if (!user.shop) {
+      alert('접근 권한이 없습니다.');
+      router.replace('/');
+      return;
+    }
+
+    const fetchNotice = async () => {
+      try {
+        const response = await axiosInstance.get(
+          `/shops/${user.shop?.item.id}/notices/${noticeId}`
+        );
+        const notice = response.data.item;
+
+        setWage(notice.hourlyPay.toString());
+        setWorkhour(notice.workhour);
+        setDescription(notice.description);
+
+        const startDate = new Date(notice.startsAt);
+        setDate(startDate);
+        setTime(startDate);
+      } catch {
+        alert('공고 정보를 불러오는 중 오류가 발생했습니다.');
+        router.back();
+      } finally {
+        setLoading(false);
+      }
+    };
+
+    if (noticeId) fetchNotice();
+  }, [noticeId, user, router]);
+
+  const handleSubmit = async (e: React.FormEvent<HTMLFormElement>) => {
+    e.preventDefault();
+
+    if (!date || !time || !wage || !workhour || !description) return;
+    if (!user?.shop || !noticeId) return;
+
+    const combinedDateTime = new Date(date);
+    combinedDateTime.setHours(time.getHours(), time.getMinutes(), 0, 0);
+
+    const payload: NoticePayload = {
+      hourlyPay: Number(wage),
+      startsAt: combinedDateTime.toISOString(),
+      workhour,
+      description,
+    };
+
+    try {
+      await axiosInstance.put(`/shops/${user.shop.item.id}/notices/${noticeId}`, payload);
+      setModalOpen(true);
+    } catch (error) {
+      alert(error instanceof Error ? error.message : '공고 수정 중 오류 발생');
+    }
+  };
+
+  const handleModalClose = () => {
+    setModalOpen(false);
+    if (user?.shop) {
+      router.push(`/employer/shops/${user.shop.item.id}/notices/${noticeId}`);
+    }
+  };
+
+  if (loading) return;
+  if (!user?.shop) return null;
+
+  return (
+    <div className='p-4'>
+      <p className='mb-4 text-3xl font-bold'>공고 편집</p>
+
+      <form onSubmit={handleSubmit} className='flex w-full flex-col gap-4'>
+        <div className='grid grid-cols-1 gap-4 tablet:grid-cols-2 tablet:gap-6'>
+          <Input
+            id='wage'
+            label='시급'
+            requiredMark
+            placeholder='12,500'
+            inputMode='numeric'
+            suffix='원'
+            value={wage}
+            onChange={e => setWage(e.currentTarget.value.replace(/\D+/g, ''))}
+          />
+
+          <Input
+            id='workhour'
+            label='업무 시간'
+            requiredMark
+            placeholder='4'
+            inputMode='numeric'
+            suffix='시간'
+            value={workhour?.toString() ?? ''}
+            onChange={e => setWorkhour(Number(e.currentTarget.value))}
+          />
+
+          <DateInput
+            label='시작 날짜'
+            requiredMark
+            value={date ?? undefined}
+            onChange={selectedDate =>
+              setDate(selectedDate instanceof Date ? selectedDate : new Date(selectedDate))
+            }
+          />
+
+          <TimeInput
+            label='시작 시간'
+            requiredMark
+            value={time ?? undefined}
+            onChange={(selectedTime: Date | null) => setTime(selectedTime)}
+          />
+        </div>
+
+        <div className='flex flex-col gap-2'>
+          <label htmlFor='description' className='text-sm font-medium'>
+            공고 설명
+          </label>
+          <textarea
+            id='description'
+            name='description'
+            className='rounded-md border border-gray-300 p-2 focus:outline-none focus:ring-2 focus:ring-blue-400'
+            rows={4}
+            placeholder='공고에 대한 설명을 입력하세요.'
+            value={description}
+            onChange={e => setDescription(e.target.value)}
+          />
+        </div>
+
+        <Button
+          type='submit'
+          variant='primary'
+          size='lg'
+          className='mt-5 w-full'
+          disabled={!wage || !date || !time || !workhour || !description}
+        >
+          등록하기
+        </Button>
+      </form>
+
+      <Modal
+        open={modalOpen}
+        onClose={handleModalClose}
+        title='편집 완료'
+        variant='success'
+        primaryText='확인'
+        onPrimary={handleModalClose}
+      />
+    </div>
+  );
+};
+
+export default EmployerNoticeEditPage;
diff --git a/src/pages/employer/shops/[shopId]/notices/[noticeId]/index.tsx b/src/pages/employer/shops/[shopId]/notices/[noticeId]/index.tsx
index 7af60b9..7e384db 100644
--- a/src/pages/employer/shops/[shopId]/notices/[noticeId]/index.tsx
+++ b/src/pages/employer/shops/[shopId]/notices/[noticeId]/index.tsx
@@ -106,7 +106,8 @@ const EmployerNoticeDetailPage = ({ notice }: { notice: NoticeCard }) => {
   const [modal, setModal] = useState<ModalItems | null>(null);
 
   const status = getNoticeStatus(notice.closed, notice.startsAt);
-  const canEdit = useMemo(() => status === 'open', [status]);
+  const isOwner = user?.shop?.item.id === notice.shopId;
+  const canEdit = useMemo(() => status === 'open' && isOwner, [status, isOwner]);
 
   // 공고 편집하기
   const handleEditClick = useCallback(() => {
@@ -190,6 +191,7 @@ const EmployerNoticeDetailPage = ({ notice }: { notice: NoticeCard }) => {
           className='font-bold'
           variant={'secondary'}
           onClick={handleEditClick}
+          disabled={!canEdit}
         >
           공고 편집하기
         </Button>
diff --git a/src/pages/employer/shops/[shopId]/notices/register/index.tsx b/src/pages/employer/shops/[shopId]/notices/register/index.tsx
index ee49651..3ec25b4 100644
--- a/src/pages/employer/shops/[shopId]/notices/register/index.tsx
+++ b/src/pages/employer/shops/[shopId]/notices/register/index.tsx
@@ -3,14 +3,12 @@ import useAuth from '@/hooks/useAuth';
 import axiosInstance from '@/lib/axios';
 import { useRouter } from 'next/router';
 import { useEffect, useState } from 'react';
-
-interface NoticePayload {
+interface NoticeLoad {
   hourlyPay: number;
   startsAt: string;
   workhour: number;
   description: string;
 }
-
 const EmployerNoticeRegisterPage = () => {
   const router = useRouter();
   const { user } = useAuth();
@@ -21,26 +19,23 @@ const EmployerNoticeRegisterPage = () => {
   const [workhour, setWorkhour] = useState<number>();
   const [description, setDescription] = useState('');
 
-  const [modalOpen, setModalOpen] = useState(false);
-  const [newNoticeId, setNewNoticeId] = useState<string | null>(null);
+  const [accessModal, setAccessModal] = useState(false);
+  const [successModal, setSuccessModal] = useState(false);
+  const [modalHandler, setModalHandler] = useState<() => void>(() => () => {});
 
   useEffect(() => {
     if (user && !user.shop) {
-      alert('접근 권한이 없습니다.');
-      router.replace('/');
+      setAccessModal(true);
     }
-  }, [user, router]);
+  }, [user]);
 
   const handleSubmit = async (e: React.FormEvent<HTMLFormElement>) => {
     e.preventDefault();
-
     if (!date || !time || !wage || !workhour || !description) return;
     if (!user?.shop) return;
-
     const combinedDateTime = new Date(date);
     combinedDateTime.setHours(time.getHours(), time.getMinutes(), 0, 0);
-
-    const payload: NoticePayload = {
+    const payload: NoticeLoad = {
       hourlyPay: Number(wage),
       startsAt: combinedDateTime.toISOString(),
       workhour,
@@ -49,27 +44,28 @@ const EmployerNoticeRegisterPage = () => {
 
     try {
       const response = await axiosInstance.post(`/shops/${user.shop.item.id}/notices`, payload);
-      const noticeId = response.data.id; // 새 공고 ID
-      setNewNoticeId(noticeId);
-      setModalOpen(true);
+      const noticeId = response.data.item.id;
+
+      if (!noticeId) {
+        alert('등록된 공고 ID를 가져올 수 없습니다.');
+        return;
+      }
+
+      const handleModalConfirm = async () => {
+        setSuccessModal(false);
+        await router.push(`/employer/shops/${user.shop!.item.id}/notices/${noticeId}`);
+      };
+
+      setModalHandler(() => handleModalConfirm);
+      setSuccessModal(true);
     } catch (error) {
       alert(error instanceof Error ? error.message : '공고 등록 중 오류 발생');
     }
   };
 
-  const handleModalClose = () => {
-    setModalOpen(false);
-    if (user?.shop && newNoticeId) {
-      router.push(`/employer/shops/${user.shop.item.id}/notices/${newNoticeId}`);
-    }
-  };
-
-  if (!user?.shop) return null;
-
   return (
     <div className='p-4'>
       <p className='font-weight-700 mb-4 text-3xl font-bold'>공고 등록</p>
-
       <form onSubmit={handleSubmit} className='flex w-full flex-col gap-4'>
         <div className='grid grid-cols-2 gap-6'>
           <Input
@@ -84,7 +80,6 @@ const EmployerNoticeRegisterPage = () => {
               setWage(e.currentTarget.value.replace(/\D+/g, ''))
             }
           />
-
           <Input
             id='workhour'
             label='업무 시간'
@@ -97,7 +92,6 @@ const EmployerNoticeRegisterPage = () => {
               setWorkhour(Number(e.currentTarget.value))
             }
           />
-
           <DateInput
             label='시작 날짜'
             requiredMark
@@ -110,7 +104,6 @@ const EmployerNoticeRegisterPage = () => {
               }
             }}
           />
-
           <TimeInput
             label='시작 시간'
             requiredMark
@@ -132,7 +125,6 @@ const EmployerNoticeRegisterPage = () => {
             onChange={e => setDescription(e.target.value)}
           />
         </div>
-
         <Button
           type='submit'
           variant='primary'
@@ -144,16 +136,26 @@ const EmployerNoticeRegisterPage = () => {
         </Button>
       </form>
 
+      {accessModal && (
+        <Modal
+          open={accessModal}
+          title='접근 권한이 없습니다'
+          variant='warning'
+          primaryText='확인'
+          onPrimary={() => router.replace('/')} // 확인 누르면 메인으로
+          onClose={() => setAccessModal(false)}
+        />
+      )}
+
       <Modal
-        open={modalOpen}
-        onClose={handleModalClose}
+        open={successModal}
+        onClose={() => setSuccessModal(false)}
         title='등록 완료'
         variant='success'
         primaryText='확인'
-        onPrimary={handleModalClose}
+        onPrimary={modalHandler}
       />
     </div>
   );
 };
-
 export default EmployerNoticeRegisterPage;