Abstract: In order to find out the changing pattern of foot arches of different foot types in walking, the prediction model of static arch parameters on dynamic arch angle was established. Using the fixed-point camera method, 20 young women (10 normal feel and 10 flat feet, respectively) were selected for the analysis of the mean value of static and dynamic longitudinal angles in standing position and walking gait support phase. There was no difference in the variation amplitude of longitudinal arch angle between the two groups (p>0.05). Compared with the standing position, the medial longitudinal arch angle increased significantly in both the middle and late stages of the two groups (p<0.01). The medial longitudinal arch angle in standing position predicted the maximum arch angle in walking on normal feet (R²=0.77) and flat feet (R²=0.61). The results showed that the static medial longitudinal arch angle can be used to predict walking within a certain range.