我通常只是在上运行一个函数wpmu_new_blog - 最好加入mu-plugins

function wpse_wpmu_remove_default_content($blog_id, $user_id, $domain, $path, $site_id, $meta) {

  if ( !current_user_can(\'manage_network\') )
    return;

  switch_to_blog($blog_id);

  // Remove the default post & page
  wp_delete_post(1, true);
  wp_delete_post(2, true);

  // Remove the first comment
  wp_delete_comment( 1, true );

  restore_current_blog();
}

add_action( \'wpmu_new_blog\', \'wpse_wpmu_remove_default_content\' );