Im trying to set other person as admin for specific apps (To give access create provisioning profile). However, when i set the user as admin, it will open to access to all my apps in Apple Developer Program. Please help me out.
It's not possible to restrict the access of the role admin. It's only possible to roles "smaller" than admin, i.e. appmanager, developer, marketing etc.
There's also no way to give a person specific app-level access on https://developer.apple.com/account (Apple Developer Portal). The app access is only for https://appstoreconnect.apple.com (App Store Connect)
You might want to check out the official documentation over at https://developer.apple.com/support/roles/
Please note that if you have a personal/individual account, it's not possible to add people to Apple Developer Portal. It's only something company accounts can do.