diff --git a/projects/ucap-webmessenger-app/src/app/store/messenger/event/reducers.ts b/projects/ucap-webmessenger-app/src/app/store/messenger/event/reducers.ts
index 58719033..9b6fc5e2 100644
--- a/projects/ucap-webmessenger-app/src/app/store/messenger/event/reducers.ts
+++ b/projects/ucap-webmessenger-app/src/app/store/messenger/event/reducers.ts
@@ -1,6 +1,7 @@
 import { createReducer, on } from '@ngrx/store';
 import { initialState } from './state';
 import { infoSuccess, appendInfoList, info, infoFailure } from './actions';
+import * as AuthenticationStore from '@app/store/account/authentication';
 
 export const reducer = createReducer(
   initialState,
@@ -32,5 +33,11 @@ export const reducer = createReducer(
       ...state,
       infoList: [...state.infoList, action.info]
     };
+  }),
+
+  on(AuthenticationStore.logout, (state, action) => {
+    return {
+      ...initialState
+    };
   })
 );
diff --git a/projects/ucap-webmessenger-app/src/app/store/messenger/option/reducers.ts b/projects/ucap-webmessenger-app/src/app/store/messenger/option/reducers.ts
index c4ac660b..df652195 100644
--- a/projects/ucap-webmessenger-app/src/app/store/messenger/option/reducers.ts
+++ b/projects/ucap-webmessenger-app/src/app/store/messenger/option/reducers.ts
@@ -1,6 +1,7 @@
 import { createReducer, on } from '@ngrx/store';
 import { initialState } from './state';
 import { regViewSuccess, regUpdateSuccess } from './actions';
+import * as AuthenticationStore from '@app/store/account/authentication';
 
 export const reducer = createReducer(
   initialState,
@@ -15,5 +16,10 @@ export const reducer = createReducer(
       ...state,
       reg: action.res
     };
+  }),
+  on(AuthenticationStore.logout, (state, action) => {
+    return {
+      ...initialState
+    };
   })
 );
diff --git a/projects/ucap-webmessenger-app/src/app/store/messenger/query/reducers.ts b/projects/ucap-webmessenger-app/src/app/store/messenger/query/reducers.ts
index 53314fe9..1cf7e2c0 100644
--- a/projects/ucap-webmessenger-app/src/app/store/messenger/query/reducers.ts
+++ b/projects/ucap-webmessenger-app/src/app/store/messenger/query/reducers.ts
@@ -2,6 +2,8 @@ import { createReducer, on } from '@ngrx/store';
 import { initialState } from './state';
 import { authSuccess, deptSuccess, deptUserSuccess } from './actions';
 
+import * as AuthenticationStore from '@app/store/account/authentication';
+
 export const reducer = createReducer(
   initialState,
   on(authSuccess, (state, action) => {
@@ -24,5 +26,10 @@ export const reducer = createReducer(
       selectedDepartmentUserInfoList: action.userInfos,
       selectedDepartmentStatus: action.res
     };
+  }),
+  on(AuthenticationStore.logout, (state, action) => {
+    return {
+      ...initialState
+    };
   })
 );
diff --git a/projects/ucap-webmessenger-app/src/app/store/messenger/room/reducers.ts b/projects/ucap-webmessenger-app/src/app/store/messenger/room/reducers.ts
index daf11df6..ac717cab 100644
--- a/projects/ucap-webmessenger-app/src/app/store/messenger/room/reducers.ts
+++ b/projects/ucap-webmessenger-app/src/app/store/messenger/room/reducers.ts
@@ -2,6 +2,8 @@ import { createReducer, on } from '@ngrx/store';
 import { initialState } from './state';
 import { infoSuccess } from './actions';
 
+import * as AuthenticationStore from '@app/store/account/authentication';
+
 export const reducer = createReducer(
   initialState,
   on(infoSuccess, (state, action) => {
@@ -11,5 +13,11 @@ export const reducer = createReducer(
       userInfoList: action.userInfoList,
       userInfoShortList: action.userInfoShortList
     };
+  }),
+
+  on(AuthenticationStore.logout, (state, action) => {
+    return {
+      ...initialState
+    };
   })
 );
diff --git a/projects/ucap-webmessenger-app/src/app/store/messenger/status/reducers.ts b/projects/ucap-webmessenger-app/src/app/store/messenger/status/reducers.ts
index 91e6f681..300d62a1 100644
--- a/projects/ucap-webmessenger-app/src/app/store/messenger/status/reducers.ts
+++ b/projects/ucap-webmessenger-app/src/app/store/messenger/status/reducers.ts
@@ -2,6 +2,8 @@ import { createReducer, on } from '@ngrx/store';
 import { initialState } from './state';
 import { bulkInfoSuccess } from './actions';
 
+import * as AuthenticationStore from '@app/store/account/authentication';
+
 export const reducer = createReducer(
   initialState,
   on(bulkInfoSuccess, (state, action) => {
@@ -9,5 +11,11 @@ export const reducer = createReducer(
       ...state,
       statusBulkInfoList: action.statusBulkInfoList
     };
+  }),
+
+  on(AuthenticationStore.logout, (state, action) => {
+    return {
+      ...initialState
+    };
   })
 );
diff --git a/projects/ucap-webmessenger-app/src/app/store/messenger/sync/reducers.ts b/projects/ucap-webmessenger-app/src/app/store/messenger/sync/reducers.ts
index 32ac7b2a..2db0ae37 100644
--- a/projects/ucap-webmessenger-app/src/app/store/messenger/sync/reducers.ts
+++ b/projects/ucap-webmessenger-app/src/app/store/messenger/sync/reducers.ts
@@ -18,6 +18,8 @@ import {
   RoomUserData
 } from '@ucap-webmessenger/protocol-sync';
 
+import * as AuthenticationStore from '@app/store/account/authentication';
+
 export const reducer = createReducer(
   initialState,
   on(buddy2Success, (state, action) => {
@@ -91,5 +93,11 @@ export const reducer = createReducer(
         { ...state.room }
       )
     };
+  }),
+
+  on(AuthenticationStore.logout, (state, action) => {
+    return {
+      ...initialState
+    };
   })
 );