The purpose of this study was about applying Fitness Education Model to elementary school physical education class that improved students physical fitness and developed an active lifestyle. The participants of this research were 19 male, 18 female from sixth grades of Pan-Sin Elementary school “healthy class”. The researcher was the P.E teacher. School documents and video observation were used to collect data and analysed by qualitative method. The researcher planed 15week-long Fitness Education Model teaching materials, to improve students physical fitness and lifestyle. The whole process was to improve curriculum, overcome teaching problem, to adapt for Elementary School curriculum. The followings were results of this study: Students accepted Fitness Education Model curriculum: From injury prevent worksheets, healthy management sheet and video observation to know students love P.E. classes, especially injury prevention section. The researcher penetrates the findings the analysis, the self-introspection, the revision, improves the curriculum and teacher thinking .