If there is no clinical symptom, no treatment is needed; if there is clinical symptom, surgical treatment, functional exercise, physical correction and other methods of treatment should be chosen according to the condition. 1. Surgical treatment: for flat feet related to bone deformity, vascular and neurological lesions, as well as non-surgical treatment is ineffective and the deformity is more serious, according to the condition of the baby, we can choose osteotomy and orthopedic surgery, arthroplasty, joint braking surgery, etc., in order to alleviate the symptoms and correct the deformity. 2. Functional exercise: For people without structural deformity changes, regular functional exercise can be carried out under the guidance of doctors, including plantar myofascial release, elastic band to resist inversion, soft cushion or bunker walking exercises, etc., which can exercise the muscles and ligaments of the sole of the foot and the back of the calf. This can improve the flat feet. 3. Physical correction: including manipulation correction, plaster fixation, wearing orthopedic shoes or orthopedic insoles, etc. Through these methods, the deformity of the foot can be corrected and the normal arch can be restored, so as to improve the flat foot. It is recommended that after the appearance of flat feet, one should consult a doctor in time to assess the condition and then carry out appropriate treatment.