diff --git a/src/components/auth/Join.jsx b/src/components/auth/Join.jsx
index 5ae0b5ae..ff64225c 100644
--- a/src/components/auth/Join.jsx
+++ b/src/components/auth/Join.jsx
@@ -11,8 +11,9 @@ export default function Join() {
   const router = useRouter()
 
   // 가입 신청
-  const joinProcess = async (formData) => {
-    formData.preventDefault()
+  const joinProcess = async (e) => {
+    e.preventDefault()
+    const formData = new FormData(e.target)
 
     const param = {
       storeQcastNm: formData.get('storeQcastNm'),
@@ -197,7 +198,7 @@ export default function Join() {
                     </th>
                     <td>
                       <div className="input-wrap" style={{ width: '200px' }}>
-                        <input type="text" id="userNm" name="userNm" required className="input-light" />
+                        <input type="text" id="userNm" name="userNm" className="input-light" required />
                       </div>
                     </td>
                   </tr>
@@ -215,7 +216,7 @@ export default function Join() {
                     </th>
                     <td>
                       <div className="input-wrap" style={{ width: '200px' }}>
-                        <input type="text" id="userId" name="userId" className="input-light" />
+                        <input type="text" id="userId" name="userId" className="input-light" required />
                       </div>
                     </td>
                   </tr>
@@ -225,7 +226,7 @@ export default function Join() {
                     </th>
                     <td>
                       <div className="input-wrap" style={{ width: '200px' }}>
-                        <input type="text" id="email" name="email" className="input-light" />
+                        <input type="text" id="email" name="email" className="input-light" required />
                       </div>
                     </td>
                   </tr>
@@ -241,6 +242,7 @@ export default function Join() {
                           name="userTelNo"
                           className="input-light"
                           placeholder={getMessage('join.sub2.telNo_placeholder')}
+                          required
                         />
                       </div>
                     </td>
@@ -257,6 +259,7 @@ export default function Join() {
                           name="userFax"
                           className="input-light"
                           placeholder={getMessage('join.sub1.fax_placeholder')}
+                          required
                         />
                       </div>
                     </td>