In children, distal radius fractures can be removed from external fixation as early as 4 to 6 weeks for activities such as finger flexion and extension, and writing. A distal radius fracture is a fracture within 3cm of the articular surface of the distal radius. This area is the junction of cancellous and dense bone, and is easily fractured once external force is applied. Distal radius fractures are generally categorized into extension and flexion fractures. The treatment of distal radius fracture is mainly based on manipulation and external fixation, and some of them need surgery. However, no matter it is manipulation or incision, the fingers should be flexed at an early stage after the operation, and the external fixation can be removed in 4~6 weeks, and the wrist joint activities can be started gradually. Therefore, after the distal radius fracture in children, finger activities should be carried out as early as possible, but when writing, not only need to use the fingers, but also need to use the wrist joint, so the earliest wrist activities should be carried out in 4~6 weeks after the injury.