diff --git a/src/components/introduce/ApplicantViewButton.jsx b/src/components/introduce/ApplicantViewButton.jsx
index 41b850b..42e6743 100644
--- a/src/components/introduce/ApplicantViewButton.jsx
+++ b/src/components/introduce/ApplicantViewButton.jsx
@@ -1,5 +1,7 @@
 import React, { useState } from 'react';
 
+import styled from '@emotion/styled';
+
 import { changeDateToTime, isCheckedTimeStatus } from '../../util/utils';
 
 import ApplyStatusButton from './ApplyStatusButton';
@@ -7,6 +9,11 @@ import ApplicationFormModal from './modals/ApplicationFormModal';
 import AskApplyCancelModal from './modals/AskApplyCancelModal';
 import AskLoginModal from './modals/AskLoginModal';
 
+const ParticipantsStatus = styled.div`
+  display: flex;
+  flex-direction: row;
+`;
+
 const ApplicantViewButton = ({
   group, onApply, user, realTime, onApplyCancel, onChangeApplyFields, applyFields, clearForm,
 }) => {
@@ -54,19 +61,30 @@ const ApplicantViewButton = ({
     clearForm();
   };
 
+  const isCheckedUserStatus = (applicant) => (userEmail) => applicant
+    .find(({ id }) => id === userEmail);
+
+  const status = {
+    ...group,
+    time: realTime,
+    applyEndTime,
+  };
+
   if (moderatorId === user) {
     return null;
   }
 
   return (
     <>
-      <ApplyStatusButton
-        user={user}
-        onApply={handleApply}
-        onCancel={handleApplyCancelConfirmClick}
-        applyStatus={participants.some(({ id }) => id === user)}
-        timeStatus={isCheckedTimeStatus({ ...group, time: realTime, applyEndTime })}
-      />
+      <ParticipantsStatus>
+        <ApplyStatusButton
+          user={user}
+          onApply={handleApply}
+          onCancel={handleApplyCancelConfirmClick}
+          userStatus={isCheckedUserStatus(participants)(user)}
+          timeStatus={isCheckedTimeStatus(status)}
+        />
+      </ParticipantsStatus>
       <AskLoginModal
         visible={loginCheckModal}
         onCancel={handleLoginCheckCancel}
diff --git a/src/components/introduce/ApplicantViewButton.test.jsx b/src/components/introduce/ApplicantViewButton.test.jsx
index c69d81e..3fe0ac3 100644
--- a/src/components/introduce/ApplicantViewButton.test.jsx
+++ b/src/components/introduce/ApplicantViewButton.test.jsx
@@ -53,7 +53,7 @@ describe('ApplicantViewButton', () => {
         applyEndDate: tomorrow,
         participants: [
           { id: 'user2' },
-          { id: 'user' },
+          { id: 'user', confirm: false },
         ],
         personnel: 3,
       };
@@ -110,13 +110,13 @@ describe('ApplicantViewButton', () => {
           ...STUDY_GROUP,
           applyEndDate: yesterday,
           participants: [
-            { id: 'user2' },
+            { id: 'user1', confirm: false },
           ],
           personnel: 2,
         };
 
         it('renders recruitment closed text', () => {
-          const { container } = renderApplicantViewButton({ group, time });
+          const { container } = renderApplicantViewButton({ group, time, user: 'user1' });
 
           expect(container).toHaveTextContent('모집 마감');
         });
@@ -131,13 +131,13 @@ describe('ApplicantViewButton', () => {
           applyEndDate: tomorrow,
           participants: [
             { id: 'user2' },
-            { id: 'user3' },
+            { id: 'user3', confirm: false },
           ],
-          personnel: 2,
+          personnel: 1,
         };
 
         it('renders recruitment closed text', () => {
-          const { container } = renderApplicantViewButton({ group, time });
+          const { container } = renderApplicantViewButton({ group, time, user: 'user3' });
 
           expect(container).toHaveTextContent('모집 마감');
         });
diff --git a/src/components/introduce/ApplyStatusButton.jsx b/src/components/introduce/ApplyStatusButton.jsx
index 7719b06..e7a5e60 100644
--- a/src/components/introduce/ApplyStatusButton.jsx
+++ b/src/components/introduce/ApplyStatusButton.jsx
@@ -1,40 +1,67 @@
 import React from 'react';
 
+import ApproveStatus from '../../styles/ApproveStatus';
+
 import StyledApplyStatusButton from '../../styles/StyledApplyStatusButton';
 
+const checkConfirm = (confirm) => confirm === true;
+
 const ApplyStatusButton = ({
-  timeStatus, onApply, applyStatus, onCancel,
+  timeStatus, onApply, userStatus, onCancel,
 }) => {
-  if (!timeStatus && applyStatus) {
+  if (!timeStatus && !userStatus) {
     return (
       <StyledApplyStatusButton
         type="button"
-        className="apply-cancel"
-        onClick={onCancel}
+        className="apply"
+        onClick={onApply}
       >
-        신청 취소
+        신청하기
       </StyledApplyStatusButton>
     );
   }
 
-  if (applyStatus) {
+  if (!timeStatus && !checkConfirm(userStatus.confirm)) {
     return (
-      <StyledApplyStatusButton
-        type="button"
-        className="apply-complete"
-      >
-        신청 완료
-      </StyledApplyStatusButton>
+      <>
+        <ApproveStatus>
+          승인 대기중..
+        </ApproveStatus>
+        <StyledApplyStatusButton
+          type="button"
+          className="apply-cancel"
+          onClick={onCancel}
+        >
+          신청 취소
+        </StyledApplyStatusButton>
+      </>
     );
   }
 
-  if (timeStatus) {
+  if (!timeStatus && checkConfirm(userStatus.confirm)) {
+    return (
+      <>
+        <ApproveStatus>
+          승인 완료!
+        </ApproveStatus>
+        <StyledApplyStatusButton
+          type="button"
+          className="apply-cancel"
+          onClick={onCancel}
+        >
+          신청 취소
+        </StyledApplyStatusButton>
+      </>
+    );
+  }
+
+  if (timeStatus && checkConfirm(userStatus.confirm)) {
     return (
       <StyledApplyStatusButton
         type="button"
-        className="deadline"
+        className="apply-complete"
       >
-        모집 마감
+        신청 완료
       </StyledApplyStatusButton>
     );
   }
@@ -42,10 +69,9 @@ const ApplyStatusButton = ({
   return (
     <StyledApplyStatusButton
       type="button"
-      className="apply"
-      onClick={onApply}
+      className="deadline"
     >
-      신청하기
+      모집 마감
     </StyledApplyStatusButton>
   );
 };
diff --git a/src/components/introduce/ApplyStatusButton.test.jsx b/src/components/introduce/ApplyStatusButton.test.jsx
index 47591b9..fbb73b2 100644
--- a/src/components/introduce/ApplyStatusButton.test.jsx
+++ b/src/components/introduce/ApplyStatusButton.test.jsx
@@ -8,27 +8,46 @@ describe('ApplyStatusButton', () => {
   const handleApply = jest.fn();
 
   const renderApplyStatusButton = ({
-    applyStatus = false,
+    userStatus,
     timeStatus = false,
   }) => render((
     <ApplyStatusButton
-      applyStatus={applyStatus}
+      userStatus={userStatus}
       onApply={handleApply}
       timeStatus={timeStatus}
     />
   ));
 
   context('When the applicant applies before the application deadline', () => {
-    it('renders Cancel application', () => {
-      const { container } = renderApplyStatusButton({ applyStatus: true });
+    context('Before approval', () => {
+      it('renders cancel application and Pending approval', () => {
+        const { container } = renderApplyStatusButton({
+          userStatus: { confirm: false },
+        });
 
-      expect(container).toHaveTextContent('신청 취소');
+        expect(container).toHaveTextContent('신청 취소');
+        expect(container).toHaveTextContent('승인 대기중..');
+      });
+    });
+
+    context('After approval', () => {
+      it('renders Cancel application and Approved', () => {
+        const { container } = renderApplyStatusButton({
+          userStatus: { confirm: true },
+        });
+
+        expect(container).toHaveTextContent('신청 취소');
+        expect(container).toHaveTextContent('승인 완료!');
+      });
     });
   });
 
   context('When the study application is completed', () => {
     it('renders application completed', () => {
-      const { container } = renderApplyStatusButton({ applyStatus: true, timeStatus: true });
+      const { container } = renderApplyStatusButton({
+        userStatus: { confirm: true },
+        timeStatus: true,
+      });
 
       expect(container).toHaveTextContent('신청 완료');
     });
@@ -36,7 +55,10 @@ describe('ApplyStatusButton', () => {
 
   context('When the study application deadline', () => {
     it('renders application deadline', () => {
-      const { container } = renderApplyStatusButton({ timeStatus: true });
+      const { container } = renderApplyStatusButton({
+        userStatus: { confirm: false },
+        timeStatus: true,
+      });
 
       expect(container).toHaveTextContent('모집 마감');
     });
diff --git a/src/containers/introduce/IntroduceHeaderContainer.test.jsx b/src/containers/introduce/IntroduceHeaderContainer.test.jsx
index 50c6dd9..a38d36d 100644
--- a/src/containers/introduce/IntroduceHeaderContainer.test.jsx
+++ b/src/containers/introduce/IntroduceHeaderContainer.test.jsx
@@ -146,7 +146,7 @@ describe('IntroduceHeaderContainer', () => {
         applyEndDate: tomorrow,
         participants: [
           { id: 'user2' },
-          { id: 'user' },
+          { id: 'user', confirm: false },
         ],
         personnel: 3,
       };
diff --git a/src/styles/ApproveStatus.jsx b/src/styles/ApproveStatus.jsx
new file mode 100644
index 0000000..d9b5e40
--- /dev/null
+++ b/src/styles/ApproveStatus.jsx
@@ -0,0 +1,42 @@
+/* eslint-disable react/jsx-props-no-spreading */
+import React from 'react';
+
+import styled from '@emotion/styled';
+
+import palette from './palette';
+
+const ApproveStatusWrapper = styled.div`
+  display: inline-flex;
+  align-items: center;
+  font-weight: bold;
+  line-height: 0;
+  font-size: 1rem;
+  color: ${palette.violet[4]};
+  padding: 0.8rem 1rem;
+`;
+
+const LoadingContent = styled.span`
+  margin-left: .3rem;
+  width: 12px;
+  height: 12px;
+  border-top: 3px solid ${palette.violet[2]};
+  border-bottom: 3px solid ${palette.violet[2]};
+  border-right: 3px solid ${palette.violet[4]};
+  border-left: 3px solid ${palette.violet[4]};
+  animation: load  0.75s ease infinite;
+  border-radius: 100%;
+
+  @keyframes load {
+    0% { transform: rotate( 0deg ); }
+    100% { transform: rotate(180deg); }
+  }
+`;
+
+const ApproveStatus = ({ children, ...props }) => (
+  <ApproveStatusWrapper {...props}>
+    {children}
+    <LoadingContent />
+  </ApproveStatusWrapper>
+);
+
+export default ApproveStatus;
diff --git a/src/util/utils.js b/src/util/utils.js
index 1487c70..4edbf02 100644
--- a/src/util/utils.js
+++ b/src/util/utils.js
@@ -6,9 +6,16 @@ export function equal(key, value) {
   return (obj) => obj[key] === value;
 }
 
+export const authorizedUsersNumber = (participants) => participants
+  .filter(({ confirm }) => confirm && confirm === true)
+  .length + 1;
+
 export const isCheckedTimeStatus = ({
   time, applyEndTime, participants, personnel,
-}) => (!!((time - applyEndTime >= 0 || participants.length === parseInt(personnel, 10))));
+}) => (!!((
+  time - applyEndTime >= 0
+  || authorizedUsersNumber(participants) >= parseInt(personnel, 10)
+)));
 
 export const isCheckedOnlyTimeStatus = ({ time, applyEndTime }) => (time - applyEndTime >= 0);
 
@@ -18,10 +25,6 @@ export const isCheckValidate = (values) => values.map(checkTrim).includes('');
 
 export const changeDateToTime = (date) => new Date(date).getTime();
 
-export const authorizedUsersNumber = (participants) => participants
-  .filter(({ confirm }) => confirm && confirm === true)
-  .length + 1;
-
 export const applyDateToString = (response) => response
   .data()
   .applyEndDate