diff --git a/frontend/src/components/recruitmentPost/ApplyForm/index.tsx b/frontend/src/components/recruitmentPost/ApplyForm/index.tsx
index 8336df545..8c43035da 100644
--- a/frontend/src/components/recruitmentPost/ApplyForm/index.tsx
+++ b/frontend/src/components/recruitmentPost/ApplyForm/index.tsx
@@ -8,7 +8,6 @@ import { validateEmail, validateName, validatePhoneNumber } from '@domain/valida
 import { ApplicantData, ApplyRequestBody, Question } from '@customTypes/apply';
 import { applyMutations, applyQueries } from '@hooks/apply';
 import useForm from '@hooks/utils/useForm';
-import { formatPhoneNumber } from '@utils/formatPhoneNumber';
 import { useParams } from 'react-router-dom';
 
 import CheckBox from '@components/common/CheckBox';
@@ -57,7 +56,7 @@ export default function ApplyForm({ questions, isClosed }: ApplyFormProps) {
       body: {
         applicant: {
           ...applicant,
-          phone: applicant.phone.replace(/-/g, ''),
+          phone: applicant.phone,
         },
         answers: Object.entries(answers).map(([questionId, answer]) => ({
           questionId,
@@ -95,7 +94,6 @@ export default function ApplyForm({ questions, isClosed }: ApplyFormProps) {
               onBlur: validatePhoneNumber.onBlur,
               onChange: validatePhoneNumber.onChange,
             },
-            formatter: formatPhoneNumber,
           })}
           inputMode="numeric"
           label="전화 번호"
diff --git a/frontend/src/domain/validations/apply.ts b/frontend/src/domain/validations/apply.ts
index 362b9388f..7ce5e1a38 100644
--- a/frontend/src/domain/validations/apply.ts
+++ b/frontend/src/domain/validations/apply.ts
@@ -4,7 +4,7 @@ import { isEmptyString, isNumber } from './common';
 
 const regex = {
   email: /^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$/,
-  phone: /^\d{3}-\d{3,4}-\d{4}$/,
+  phone: /^\d{11}$/,
   name: /[^ㄱ-ㅎ가-힣a-zA-Z\s-]/,
 };
 
@@ -14,9 +14,12 @@ const isValidEmail = (email: string): email is EmailAddress => regex.email.test(
 type PhoneNumber = Branded<string, 'PhoneNumber'>;
 const isValidPhoneNumber = (phone: string): phone is PhoneNumber => regex.phone.test(phone);
 
+type Name = Branded<string, 'Name'>;
+const isValidName = (name: string): name is Name => !regex.name.test(name);
+
 export const validateName = {
   onBlur: (name: string) => {
-    if (regex.name.test(name)) {
+    if (!isValidName(name)) {
       throw new ValidationError({ inputName: 'name', message: '한글, 영문, 공백, - 만 입력해 주세요.' });
     }
 
@@ -26,7 +29,7 @@ export const validateName = {
   },
 
   onChange: (name: string) => {
-    if (regex.name.test(name)) {
+    if (!isValidName(name)) {
       throw new ValidationError({ inputName: 'name', message: '한글, 영문, 공백, - 만 입력해 주세요.' });
     }
   },
diff --git a/frontend/src/pages/SignUp/index.tsx b/frontend/src/pages/SignUp/index.tsx
index 74f38ceaf..910e6bfa3 100644
--- a/frontend/src/pages/SignUp/index.tsx
+++ b/frontend/src/pages/SignUp/index.tsx
@@ -1,12 +1,11 @@
-import { useState } from 'react';
-import { Link } from 'react-router-dom';
-import InputField from '@components/common/InputField';
 import Button from '@components/common/Button';
+import InputField from '@components/common/InputField';
+import Spinner from '@components/common/Spinner';
+import { validateEmail, validatePhoneNumber } from '@domain/validations/apply';
 import useSignUp from '@hooks/useSignUp';
 import useForm from '@hooks/utils/useForm';
-import { validateEmail, validatePhoneNumber } from '@domain/validations/apply';
-import { formatPhoneNumber } from '@utils/formatPhoneNumber';
-import Spinner from '@components/common/Spinner';
+import { useState } from 'react';
+import { Link } from 'react-router-dom';
 import PasswordInput from './PasswordInput';
 import S from './style';
 
@@ -29,7 +28,7 @@ export default function SignUp() {
       return;
     }
 
-    signUpMutate.mutate({ ...formData, phone: formData.phone.split('-').join('') });
+    signUpMutate.mutate({ ...formData });
   };
 
   const deleteHangulFormatter = (value: string) => {
@@ -56,7 +55,6 @@ export default function SignUp() {
         <InputField
           {...register('phone', {
             validate: validatePhoneNumber,
-            formatter: formatPhoneNumber,
             placeholder: '전화번호',
             inputMode: 'numeric',
             maxLength: 13,