Whether pancreatic function can be restored needs to be divided into circumstances, type 1 diabetes patients are generally difficult to restore pancreatic function, there is no “how to exercise to restore pancreatic function”; part of type 2 diabetes is possible to recover after diet and exercise therapy, exercise mainly aerobic exercise. Type 1 diabetes mellitus patients pancreatic β-cells are destroyed, insulin absolute lack of pancreatic function is difficult to restore, need to use insulin to maintain blood sugar stability for life. Type 2 diabetes mellitus can be treated with diet and exercise, and some patients are able to recover their islet function by taking glucose-lowering drugs as prescribed by the doctor when necessary. Exercise is mainly aerobic exercise, such as jogging, jumping rope, swimming, etc. It is recommended that each exercise should be at least thirty minutes, five days a week. Patients with impaired pancreatic islet function should actively cooperate with doctors for treatment.