diff --git a/changelogs/fragments/8286.yml b/changelogs/fragments/8286.yml
new file mode 100644
index 000000000000..fce477aa351c
--- /dev/null
+++ b/changelogs/fragments/8286.yml
@@ -0,0 +1,2 @@
+feat:
+- [navigation] remember state when expand / collapse left nav ([#8286](https://github.com/opensearch-project/OpenSearch-Dashboards/pull/8286))
\ No newline at end of file
diff --git a/src/core/public/chrome/ui/header/collapsible_nav_group_enabled.test.tsx b/src/core/public/chrome/ui/header/collapsible_nav_group_enabled.test.tsx
index 418dca694e21..e332cb2dac59 100644
--- a/src/core/public/chrome/ui/header/collapsible_nav_group_enabled.test.tsx
+++ b/src/core/public/chrome/ui/header/collapsible_nav_group_enabled.test.tsx
@@ -69,7 +69,6 @@ describe('<CollapsibleNavGroupEnabled />', () => {
       appId$: new BehaviorSubject('test'),
       basePath: mockBasePath,
       id: 'collapsibe-nav',
-      isLocked: false,
       isNavOpen: false,
       currentWorkspace$: new BehaviorSubject<WorkspaceObject | null>({ id: 'test', name: 'test' }),
       navLinks$: new BehaviorSubject([
@@ -94,7 +93,6 @@ describe('<CollapsibleNavGroupEnabled />', () => {
         ...(props?.navLinks || []),
       ]),
       storage: new StubBrowserStorage(),
-      onIsLockedUpdate: () => {},
       closeNav: () => {},
       navigateToApp: () => Promise.resolve(),
       navigateToUrl: () => Promise.resolve(),
diff --git a/src/core/public/chrome/ui/header/collapsible_nav_group_enabled.tsx b/src/core/public/chrome/ui/header/collapsible_nav_group_enabled.tsx
index d08e2a413d42..c1c9d518a219 100644
--- a/src/core/public/chrome/ui/header/collapsible_nav_group_enabled.tsx
+++ b/src/core/public/chrome/ui/header/collapsible_nav_group_enabled.tsx
@@ -23,7 +23,6 @@ import { ChromeNavControl, ChromeNavLink } from '../..';
 import { AppCategory, NavGroupType } from '../../../../types';
 import { InternalApplicationStart } from '../../../application/types';
 import { HttpStart } from '../../../http';
-import { OnIsLockedUpdate } from './';
 import { createEuiListItem } from './nav_link';
 import type { Logos } from '../../../../common/types';
 import {
@@ -42,11 +41,9 @@ export interface CollapsibleNavGroupEnabledProps {
   collapsibleNavHeaderRender?: () => JSX.Element | null;
   basePath: HttpStart['basePath'];
   id: string;
-  isLocked: boolean;
   isNavOpen: boolean;
   navLinks$: Rx.Observable<ChromeNavLink[]>;
   storage?: Storage;
-  onIsLockedUpdate: OnIsLockedUpdate;
   closeNav: () => void;
   navigateToApp: InternalApplicationStart['navigateToApp'];
   navigateToUrl: InternalApplicationStart['navigateToUrl'];
@@ -80,10 +77,8 @@ enum NavWidth {
 export function CollapsibleNavGroupEnabled({
   basePath,
   id,
-  isLocked,
   isNavOpen,
   storage = window.localStorage,
-  onIsLockedUpdate,
   closeNav,
   navigateToApp,
   navigateToUrl,
diff --git a/src/core/public/chrome/ui/header/header.test.tsx b/src/core/public/chrome/ui/header/header.test.tsx
index c9fc84ef362c..f6a10aefc74c 100644
--- a/src/core/public/chrome/ui/header/header.test.tsx
+++ b/src/core/public/chrome/ui/header/header.test.tsx
@@ -257,4 +257,19 @@ describe('Header', () => {
     expect(component.find('[data-test-subj="headerRightControl"]').exists()).toBeFalsy();
     expect(component).toMatchSnapshot();
   });
+
+  it('should remember the collapse state when new nav is enabled', () => {
+    const branding = {
+      useExpandedHeader: false,
+    };
+    const props = {
+      ...mockProps(),
+      branding,
+      useUpdatedHeader: true,
+      onIsLockedUpdate: jest.fn(),
+    };
+    const component = mountWithIntl(<Header {...props} />);
+    component.find(EuiHeaderSectionItemButton).first().simulate('click');
+    expect(props.onIsLockedUpdate).toBeCalledWith(true);
+  });
 });
diff --git a/src/core/public/chrome/ui/header/header.tsx b/src/core/public/chrome/ui/header/header.tsx
index e92ac628b1a9..784eb0dfc464 100644
--- a/src/core/public/chrome/ui/header/header.tsx
+++ b/src/core/public/chrome/ui/header/header.tsx
@@ -45,7 +45,7 @@ import {
 } from '@elastic/eui';
 import { i18n } from '@osd/i18n';
 import classnames from 'classnames';
-import React, { createRef, useMemo, useState } from 'react';
+import React, { createRef, useCallback, useMemo, useState } from 'react';
 import useObservable from 'react-use/lib/useObservable';
 import { Observable } from 'rxjs';
 import { LoadingIndicator } from '../';
@@ -153,7 +153,7 @@ export function Header({
   const isVisible = useObservable(observables.isVisible$, false);
   const headerVariant = useObservable(observables.headerVariant$, HeaderVariant.PAGE);
   const isLocked = useObservable(observables.isLocked$, false);
-  const [isNavOpen, setIsNavOpen] = useState(false);
+  const [isNavOpenState, setIsNavOpenState] = useState(false);
   const sidecarConfig = useObservable(observables.sidecarConfig$, undefined);
   const breadcrumbs = useObservable(observables.breadcrumbs$, []);
 
@@ -177,6 +177,22 @@ export function Header({
     return getOsdSidecarPaddingStyle(sidecarConfig);
   }, [sidecarConfig]);
 
+  const isNavOpen = useUpdatedHeader ? isLocked : isNavOpenState;
+
+  const setIsNavOpen = useCallback(
+    (value) => {
+      /**
+       * When use updated header, we will regard the lock state as source of truth
+       */
+      if (useUpdatedHeader) {
+        onIsLockedUpdate(value);
+      } else {
+        setIsNavOpenState(value);
+      }
+    },
+    [setIsNavOpenState, onIsLockedUpdate, useUpdatedHeader]
+  );
+
   if (!isVisible) {
     return <LoadingIndicator loadingCount$={observables.loadingCount$} showAsBar />;
   }
@@ -616,13 +632,11 @@ export function Header({
             appId$={application.currentAppId$}
             collapsibleNavHeaderRender={collapsibleNavHeaderRender}
             id={navId}
-            isLocked={isLocked}
             navLinks$={observables.navLinks$}
             isNavOpen={isNavOpen}
             basePath={basePath}
             navigateToApp={application.navigateToApp}
             navigateToUrl={application.navigateToUrl}
-            onIsLockedUpdate={onIsLockedUpdate}
             closeNav={() => {
               setIsNavOpen(false);
               if (toggleCollapsibleNavRef.current) {