Flatfoot is very common, for soft flatfoot syndrome can use non-surgical treatment, including functional exercises, such as walking with the toes, doing flexion exercises, as well as strengthening the anterior tibial muscle, posterior tibial muscle exercise, correction of foot valgus or wearing orthopedic shoes, requiring the heel of the sole and arch waist to be narrow, the upper to be tight, the inner half of the sole waist pad 2-3mm high, in order to restore the internal longitudinal arch, hold up the talus head, rigid flatfoot syndrome, rehabilitation and orthopedic shoes Not easy to work, can be used under general anesthesia after the inversion manipulation to correct the deformity, plaster boots fixed foot in the inversion inversion position, 5-6 weeks after the removal of the plaster, change to wear orthopedic shoes. For symptomatic flatfoot who fail to correct the deformity by manipulation or who have severe deformity, triple joint fusion can be done.