您可以使用register_post_type_args filter 只需设置show_in_nav_menus argument 到false. 例如。

add_filter( \'register_post_type_args\', \'my_register_post_type_args\', 10, 2 );
function my_register_post_type_args( $args, $post_type ) {
    if ( \'post\' === $post_type ) {
    // or use below to check against two or more post types
//  if ( in_array( $post_type, array( \'post\', \'cpt_1\', \'cpt_2\', \'etc\' ) ) ) {
        $args[\'show_in_nav_menus\'] = false;
    }

    return $args;
}