I searched a lot about my problem and I did all ways. For example change .htaccess and wp-config.php file, or change site_url, deactive theme and plugins. But all of them didn't solve my problem.
Just know the problem is from database, because, when sometimes I reset my WordPress, the problem dissapears. But I don't want to lose all my data and it is very hard to import all the data at once.
One thing I have doubt about that is I installed 1-2 manage users access plugins and did some changes, then deleted them. From that moment this problem happens and I can't find his solution. Just admin can join wp-admin, other users redirect to homepage!
I find and solved my problem.the problem was from wp_users_role field in wp_option table.I reset all roles there and problem fixed