diff --git a/client/src/constants/errorMessage.ts b/client/src/constants/errorMessage.ts
index b33c12d5a..af59ee50d 100644
--- a/client/src/constants/errorMessage.ts
+++ b/client/src/constants/errorMessage.ts
@@ -45,6 +45,7 @@ export const ERROR_MESSAGE = {
   preventEmpty: '값은 비어있을 수 없어요',
   invalidInput: '올바르지 않은 입력이에요.',
   emptyBank: '계좌번호가 입력되지 않아서\n토스 송금 기능을 사용할 수 없어요',
+  invalidAccountNumber: '계좌번호는 8자에서 30자 사이로 입력 가능해요',
 };
 
 export const UNKNOWN_ERROR = 'UNKNOWN_ERROR';
diff --git a/client/src/constants/regExp.ts b/client/src/constants/regExp.ts
index d235c1f11..8a32f3755 100644
--- a/client/src/constants/regExp.ts
+++ b/client/src/constants/regExp.ts
@@ -3,6 +3,7 @@ const REGEXP = {
   eventUrl: /\/event\/([a-zA-Z0-9-]+)\//,
   billTitle: /^([ㄱ-ㅎ가-힣a-zA-Z0-9ㆍᆢ]\s?)*$/,
   memberName: /^([ㄱ-ㅎ가-힣a-zA-Zㆍᆢ]\s?)*$/,
+  accountNumber: /^\d+([\s\-]\d+)*[\s\-]?$/,
 };
 
 export default REGEXP;
diff --git a/client/src/constants/rule.ts b/client/src/constants/rule.ts
index 4b78031b9..f311dedea 100644
--- a/client/src/constants/rule.ts
+++ b/client/src/constants/rule.ts
@@ -3,6 +3,8 @@ const RULE = {
   maxEventPasswordLength: 4,
   maxMemberNameLength: 4,
   maxPrice: 10000000,
+  minAccountNumberLength: 8,
+  maxAccountNumberLength: 30,
 };
 
 export default RULE;
diff --git a/client/src/hooks/useAccount.ts b/client/src/hooks/useAccount.ts
index 288432800..0c6ed13b3 100644
--- a/client/src/hooks/useAccount.ts
+++ b/client/src/hooks/useAccount.ts
@@ -2,15 +2,20 @@ import type {Event} from 'types/serviceType';
 
 import {useEffect, useState} from 'react';
 
+import validateAccountNumber from '@utils/validate/validateAccountNumber';
+
+import RULE from '@constants/rule';
+
 import useRequestPatchEvent from './queries/event/useRequestPatchEvent';
 import useRequestGetEvent from './queries/event/useRequestGetEvent';
 
 const useAccount = () => {
   const {bankName, accountNumber} = useRequestGetEvent();
-
   const [bankNameState, setBankName] = useState(bankName);
   const [accountNumberState, setAccountNumber] = useState(accountNumber);
+  const [accountNumberErrorMessage, setAccountNumberErrorMessage] = useState<string | null>(null);
   const [canSubmit, setCanSubmit] = useState(false);
+  const [isPasting, setIsPasting] = useState(false);
 
   useEffect(() => {
     setBankName(bankName);
@@ -24,7 +29,32 @@ const useAccount = () => {
   };
 
   const handleAccount = (event: React.ChangeEvent<HTMLInputElement>) => {
-    setAccountNumber(event.target.value);
+    if (isPasting) return;
+
+    const newValue = event.target.value;
+    const {isValid, errorMessage} = validateAccountNumber(newValue);
+    setAccountNumberErrorMessage(errorMessage);
+
+    const isValidMinLength = newValue.length >= RULE.minAccountNumberLength;
+
+    if (isValid) {
+      setAccountNumber(event.target.value);
+    } else if (!isValid && !isValidMinLength) {
+      setAccountNumber(event.target.value.replace(/[^0-9\s\-]/g, '').trim());
+    }
+  };
+
+  const handleAccountOnPaste = (event: React.ClipboardEvent<HTMLInputElement>) => {
+    setIsPasting(true);
+
+    const value = `${accountNumberState}${event.clipboardData.getData('text')}`;
+    const newValue = value.replace(/[^0-9\s\-]/g, '').trim();
+    const {isValid, errorMessage} = validateAccountNumber(newValue);
+
+    setAccountNumberErrorMessage(errorMessage);
+    if (isValid) setAccountNumber(newValue);
+
+    setTimeout(() => setIsPasting(false), 0);
   };
 
   const getChangedField = () => {
@@ -49,15 +79,17 @@ const useAccount = () => {
     const existEmptyField = bankNameState.trim() === '' || accountNumberState.trim() === '';
     const isChanged = bankName !== bankNameState || accountNumber !== accountNumberState;
 
-    setCanSubmit(!existEmptyField && isChanged);
-  }, [bankNameState, accountNumberState]);
-
+    setCanSubmit(!existEmptyField && isChanged && accountNumberErrorMessage === null);
+  }, [bankName, accountNumber, bankNameState, accountNumberState, accountNumberErrorMessage]);
+  
   return {
     bankName: bankNameState,
     accountNumber: accountNumberState,
+    accountNumberErrorMessage,
     canSubmit,
     selectBank,
     handleAccount,
+    handleAccountOnPaste,
     enrollAccount,
   };
 };
diff --git a/client/src/pages/AccountPage/Account.tsx b/client/src/pages/AccountPage/Account.tsx
index 29e389fe6..0490ead31 100644
--- a/client/src/pages/AccountPage/Account.tsx
+++ b/client/src/pages/AccountPage/Account.tsx
@@ -15,7 +15,16 @@ const Account = () => {
 
   const [isBottomSheetOpen, setIsBottomSheetOpen] = useState(false);
 
-  const {bankName, accountNumber, canSubmit, selectBank, handleAccount, enrollAccount} = useAccount();
+  const {
+    bankName,
+    accountNumber,
+    accountNumberErrorMessage,
+    canSubmit,
+    selectBank,
+    handleAccount,
+    handleAccountOnPaste,
+    enrollAccount,
+  } = useAccount();
 
   const enrollAccountAndNavigateAdmin = async () => {
     await enrollAccount();
@@ -40,19 +49,19 @@ const Account = () => {
             errorText={null}
             autoFocus={false}
             isAlwaysOnLabel
-            isAlwaysOnInputBorder
             readOnly
             onClick={() => setIsBottomSheetOpen(true)}
           />
           <LabelInput
             labelText="계좌번호"
-            placeholder="030302-04-191806"
-            errorText={null}
+            placeholder="ex) 030302-04-191806"
+            errorText={accountNumberErrorMessage}
+            isError={accountNumberErrorMessage !== null}
             value={accountNumber ?? ''}
             onChange={handleAccount}
+            onPaste={handleAccountOnPaste}
             autoFocus={false}
             isAlwaysOnLabel
-            isAlwaysOnInputBorder
           />
           {isBottomSheetOpen && (
             <BankSelectModal
diff --git a/client/src/utils/validate/validateAccountNumber.ts b/client/src/utils/validate/validateAccountNumber.ts
new file mode 100644
index 000000000..fb100a22b
--- /dev/null
+++ b/client/src/utils/validate/validateAccountNumber.ts
@@ -0,0 +1,23 @@
+import {ERROR_MESSAGE} from '@constants/errorMessage';
+import REGEXP from '@constants/regExp';
+import RULE from '@constants/rule';
+
+import {ValidateResult} from './type';
+
+const validateAccountNumber = (accountNumber: string): ValidateResult => {
+  const isValidateType = () => {
+    return REGEXP.accountNumber.test(accountNumber);
+  };
+
+  const isValidateLength = () => {
+    return accountNumber.length >= RULE.minAccountNumberLength && accountNumber.length <= RULE.maxAccountNumberLength;
+  };
+
+  if (isValidateType() && isValidateLength()) {
+    return {isValid: true, errorMessage: null};
+  }
+
+  return {isValid: false, errorMessage: ERROR_MESSAGE.invalidAccountNumber};
+};
+
+export default validateAccountNumber;