diff --git a/src/entities/additional-service/ui/link-payment/apply/link-payment-step1.tsx b/src/entities/additional-service/ui/link-payment/apply/link-payment-step1.tsx
index 0974aba..5cacbfe 100644
--- a/src/entities/additional-service/ui/link-payment/apply/link-payment-step1.tsx
+++ b/src/entities/additional-service/ui/link-payment/apply/link-payment-step1.tsx
@@ -131,9 +131,14 @@ export const LinkPaymentStep1 = ({ formData, setFormData }: LinkPaymentStep1Prop
           <div className="issue-field">
             <input
               type="text"
+              inputMode="text"
               placeholder=""
               value={formData.moid}
-              onChange={(e) => handleInputChange('moid', e.target.value)}
+              onChange={(e) => {
+                // 영문자와 숫자만 허용 (한글, 특수문자 제거)
+                const cleanedValue = e.target.value.replace(/[^a-zA-Z0-9]/g, '');
+                handleInputChange('moid', cleanedValue);
+              }}
               onFocus={handleInputFocus}
             />
           </div>
diff --git a/src/pages/additional-service/link-payment/apply/link-payment-apply-confirm-page.tsx b/src/pages/additional-service/link-payment/apply/link-payment-apply-confirm-page.tsx
index 2a827f4..d7f25d0 100644
--- a/src/pages/additional-service/link-payment/apply/link-payment-apply-confirm-page.tsx
+++ b/src/pages/additional-service/link-payment/apply/link-payment-apply-confirm-page.tsx
@@ -91,7 +91,9 @@ export const LinkPaymentApplyConfirmPage = () => {
     };
 
     const onClickToBack = () => {
-        navigate(-1);
+        navigate(PATHS.additionalService.linkPayment.request, {
+            state: { formData, returnToStep: 2 }
+        });
     };
 
     return (
diff --git a/src/pages/additional-service/link-payment/apply/link-payment-apply-page.tsx b/src/pages/additional-service/link-payment/apply/link-payment-apply-page.tsx
index 2752cea..8aa276b 100644
--- a/src/pages/additional-service/link-payment/apply/link-payment-apply-page.tsx
+++ b/src/pages/additional-service/link-payment/apply/link-payment-apply-page.tsx
@@ -11,12 +11,14 @@ import { IdentityType, Language } from '@/entities/additional-service/model/type
 import { LinkContentType, LinkPaymentFormData, LinkPaymentSendMethod } from '@/entities/additional-service/model/link-pay/types';
 import { useStore } from '@/shared/model/store';
 import moment from 'moment';
+import { useLocation } from 'react-router';
 
 
 
 export const LinkPaymentApplyPage = () => {
   const { t } = useTranslation();
   const { navigate } = useNavigate();
+  const location = useLocation();
 
   const midOptionsWithoutGids = useStore.getState().UserStore.selectOptionsMidsWithoutGids;
   const userMid = useStore.getState().UserStore.mid;
@@ -27,23 +29,31 @@ export const LinkPaymentApplyPage = () => {
   });
   const initialMid = (midItem.length > 0) ? userMid : (midOptionsWithoutGids.length > 0 ? midOptionsWithoutGids[0]?.value || '' : '');
 
-  const [processStep, setProcessStep] = useState<ProcessStep>(ProcessStep.One);
-  const [formData, setFormData] = useState<LinkPaymentFormData>({
-    mid: initialMid,
-    sendMethod: LinkPaymentSendMethod.SMS,
-    goodsName: '',
-    amount: 0,
-    moid: '',
-    paymentLimitDate: moment().format('YYYY.MM.DD'),
-    buyerName: '',
-    email: '',
-    phoneNumber: '',
-    isIdentity: false,
-    identityType: IdentityType.INDIVIDUAL,
-    identityValue: '',
-    language: Language.KR,
-    linkContentType: LinkContentType.BASIC
-  });
+  // location.state에서 formData와 returnToStep 받기
+  const savedFormData = location.state?.formData;
+  const returnToStep = location.state?.returnToStep;
+
+  const [processStep, setProcessStep] = useState<ProcessStep>(
+    returnToStep === 2 ? ProcessStep.Two : ProcessStep.One
+  );
+  const [formData, setFormData] = useState<LinkPaymentFormData>(
+    savedFormData || {
+      mid: initialMid,
+      sendMethod: LinkPaymentSendMethod.SMS,
+      goodsName: '',
+      amount: 0,
+      moid: '',
+      paymentLimitDate: moment().format('YYYY.MM.DD'),
+      buyerName: '',
+      email: '',
+      phoneNumber: '',
+      isIdentity: false,
+      identityType: IdentityType.INDIVIDUAL,
+      identityValue: '',
+      language: Language.KR,
+      linkContentType: LinkContentType.BASIC
+    }
+  );
 
   useSetHeaderTitle(t('additionalService.linkPayment.applyTitle'));
   useSetHeaderType(HeaderType.LeftArrow);
diff --git a/src/shared/ui/assets/css/style-fix.css b/src/shared/ui/assets/css/style-fix.css
index eec6083..512b265 100644
--- a/src/shared/ui/assets/css/style-fix.css
+++ b/src/shared/ui/assets/css/style-fix.css
@@ -579,6 +579,34 @@ main.pop{
   object-fit: contain;
 }
 
+/* 링크결제 확인 페이지 */
+main.pop {
+  height: 100vh;
+  overflow: hidden;
+  display: flex;
+  flex-direction: column;
+}
+
+main.pop .sub-wrap {
+  flex: 1;
+  overflow-y: auto;
+  overflow-x: hidden;
+  padding-bottom: 120px;
+  -webkit-overflow-scrolling: touch;
+}
+
+main.pop .preview-body {
+  max-width: 338px;
+  width: 100%;
+  min-height: auto;
+}
+
+main.pop .apply-row {
+  position: fixed;
+  bottom: 0;
+  flex-shrink: 0;
+}
+
 .resend-text {
   word-break: break-all !important;
 }