The purpose of this study is to develop the instrument of instructional observation for pre-service teachers of living technology at junior high schools. This study was begun with developing instrument and its contents by the nominal group. The draft of evaluation instrument was made, teated, and then revised by researchers. Then, the draft was revised three times by panel discussion of experts and the living technology teachers thoroughly to establish the validity of instructional observation instrument. Five pre-service teachers were taped to establish the reliability of the instructional observation instrument. Then, the teaching process of tape was evaluated by five senior teachers and a professor of living technology. After that, the questionnaire was implemented to investigate the response about the usage of the instructional observation instrument. Finally, the conclusion and suggestions were provided based on the result above.