でないと、更新が直に反映されないからね <table width="160"> <tr> <td width = "80%"> <% form_tag :action => "update_student_status",:id => @student.id do -%> <%= options = (@student_statuses || []) select_tag("student_status_id",options_for_select(options, @student.student_status.id)) %> <%= submit_tag "更新" %> </td> <% end -%> <td width = "15%" align="right"> <%= link_to_remote "戻る",:update => "status#{@student.id}", :url => {:action => "cancel_update_status",:id => @student.id} %> </td> </tr> </table> こんな感じ。[戻る]はレンダリングね