Functional flat feet need to be corrected according to the patient’s symptoms and other choice of correction methods, can be corrected through muscle training method, auxiliary supplies, surgical treatment and so on. 1. muscle training method: feasible foot sole muscle training, such as tiptoe training, toes grasping towel training, etc., and force to raise the arch of the foot, and adhere to repeated training. 2. auxiliary supplies: including intramuscular effect patch and corrective insoles. 2. Auxiliary supplies: including intramuscular effect patch and corrective insoles. Intramuscular effect patch can better enhance the muscle proprioception, have a certain supportive effect, and have a certain effect on the less serious functional flat feet. At the same time, in recent years, personalized custom insole correction also has a certain effect. 3. Surgery: If the symptoms of flat feet are serious and conservative treatment is ineffective, surgery is feasible. If you have symptoms such as foot pain, you should go to the hospital to get a clear diagnosis, and the doctor will make individualized treatment plan according to the patient’s specific condition.