The purpose of the study was to investigate the effects of fitness education model on health-related physical fitness and physical self-concept of the sixth grade students. This research was based on the data of the 36 students in Tainan Ta-Kang Elementary school (18 females; 21 males). The physical fitness test and children physical self-concept inventory test was administered before and after the experimental classes. The collected data were analyzed by t-test. The main findings were as the followings: 1.The scores before the experimental classes in the aspects of BMI, muscular endurance and cardio-respiratory fitness, and they had reached a remarkable level. 2.The scores of the children got in the inventory were obviously better than those of the pre-test, and reached an outstanding level. The scores of Softness, Elasticity, Endurance, Muscle strength in the sub-Inventory were obviously better than those before the test, and reached a remarkable level. So, this showed that fitness education model was a physical education curriculum model that fitted the children in our country and could enhance the children's health related physical fitness and physical self-concept.