Nowadays, senior high students aren’t interested in national defense courses, which is not a main subject. Some units in national defense courses are too difficult to them, such as military knowledge and civil and foreign war histories. Military instructors are used to train discipline, but now their teaching skills are also taken highly important. So, how to make students interest in the courses by good instructional design~”ADDIE” is my topic. In this action research, the researcher used “film” as a teaching media in instructional design to motivate students and attain the teaching goals. The researcher used self-made instruction designs and work sheets to estimate the research objects’ learning results. The research objects were in the second grade of Taipei Huajiang high school, the research course was “The Art of War”, lasting 11 weeks. The data was analyzed with the observation records by myself, and my coworkers’ opinion, interviews, and assessments. There are three findings: First, “film” is a moderate teaching media in the national defense course. In this course, the recreation and education effects of the film are highly focused. Second, the length of film is better from 3 to 15 minutes, the worksheets used to estimate the learning results are necessary and quite important. Third, the instruction effects promote apparently through “ADDIE”, and the relationship between the instructor and students are better. Last, the researcher found a model of ADDIE and film instruction for some teachers who are interested in this subject in the future.