diff --git a/src/app/modules/polyglot/member_referrer/services/member_referrer.service.ts b/src/app/modules/polyglot/member_referrer/services/member_referrer.service.ts
index 34bfc4b..057f21f 100644
--- a/src/app/modules/polyglot/member_referrer/services/member_referrer.service.ts
+++ b/src/app/modules/polyglot/member_referrer/services/member_referrer.service.ts
@@ -15,6 +15,8 @@ import {
   DeleteMemberReferrerResponse,
   GetMemberReferrerResponse,
   GetMemberReferrerRequest,
+  GetMemberReferrerByCodeResponse,
+  GetMemberReferrerByCodeRequest,
 } from 'app/modules/proto/c2se/member_referrer_pb';
 import {
   SUBJECT_LIST_MEMBER_REFERRERS,
@@ -22,6 +24,7 @@ import {
   SUBJECT_UPDATE_MEMBER_REFERRER,
   SUBJECT_DELETE_MEMBER_REFERRER,
   SUBJECT_GET_MEMBER_REFERRER,
+  SUBJECT_GET_MEMBER_REFERRER_BY_CODE,
 } from 'app/modules/proto/c2se/backend/member_referrer_pb';
 
 @Injectable({
@@ -113,6 +116,33 @@ export class MemberReferrerService {
     });
   }
 
+  getMemberReferrerByCode(
+    code: string
+  ): Promise<GetMemberReferrerByCodeResponse.Result> {
+    return new Promise<GetMemberReferrerByCodeResponse.Result>(
+      (resolve, reject) => {
+        let req = new GetMemberReferrerByCodeRequest();
+
+        req.setCode(code);
+
+        this.__natsService
+          .request<GetMemberReferrerByCodeResponse.Result>(
+            SUBJECT_GET_MEMBER_REFERRER_BY_CODE,
+            req.serializeBinary(),
+            GetMemberReferrerByCodeResponse.deserializeBinary
+          )
+          .then((result) => {
+            console.log('success', result, result.getMemberReferrer());
+            return resolve(result);
+          })
+          .catch((e: Error) => {
+            console.log('failed', e);
+            return reject(e);
+          });
+      }
+    );
+  }
+
   updateMemberReferrer(): Promise<UpdateMemberReferrerResponse.Result> {
     return new Promise<UpdateMemberReferrerResponse.Result>(
       (resolve, reject) => {
diff --git a/src/app/modules/user/main/compose/sign-up-compose.component.html b/src/app/modules/user/main/compose/sign-up-compose.component.html
index a4f5f0f..3277942 100644
--- a/src/app/modules/user/main/compose/sign-up-compose.component.html
+++ b/src/app/modules/user/main/compose/sign-up-compose.component.html
@@ -47,6 +47,15 @@
             >
               추천인 코드는 필수 입력입니다.
             </mat-error>
+            <mat-error
+              *ngIf="
+                signupComposeForm
+                  ?.get('referalCode')
+                  ?.hasError('notExistReferalCode')
+              "
+            >
+              추천인 코드는 필수 입력입니다.
+            </mat-error>
           </mat-form-field>
 
           <!-- Divider -->
diff --git a/src/app/modules/user/main/compose/sign-up-compose.component.ts b/src/app/modules/user/main/compose/sign-up-compose.component.ts
index e5c26bc..0df472c 100644
--- a/src/app/modules/user/main/compose/sign-up-compose.component.ts
+++ b/src/app/modules/user/main/compose/sign-up-compose.component.ts
@@ -163,10 +163,14 @@ export class SignUpComposeComponent implements OnInit {
   }
 
   __checkReferrerCode(event: FocusEvent): void {
-    // const code = this.signupComposeForm.get('referalCode')?.value;
-    // this._memberReferrerService.getMemberReferrer(
-    //   '6df060ad-3b30-4c6c-8e9f-9d3e30974157'
-    // );
+    const code = this.signupComposeForm.get('referalCode')?.value;
+    this._memberReferrerService.getMemberReferrerByCode(code).then((result) => {
+      if (!result) {
+        this.signupComposeForm
+          ?.get('referalCode')
+          ?.setErrors({ notExistReferalCode: true });
+      }
+    });
   }
 
   __checkUsernameDuplicate(event: FocusEvent): void {