Patients with pelvic fracture should carry out rehabilitation exercises, and during bed rest, pay attention to the knee and ankle joints of both lower limbs under the slightly flexed position of the hip joint, so as not to cause pain with slight pain, and try to avoid pain caused by excessive flexion and extension, abduction and external rotation of the ipsilateral hip joint. Patients still need bed rest 2-3 weeks after injury, to strengthen the following exercises: 1, ankle pump exercises: repeated flexion and extension of the ankle joint, 5 minutes a group, 1-2 groups / hour, strengthen the quadriceps exercise. The quadriceps is also called the front side of the thigh muscle group, isometric exercises, as much as possible without increasing pain, greater than 500-1000 times a day, should try to avoid muscle atrophy while promoting blood circulation in the lower extremities; 2, hamstrings, the rear side of the thigh muscle group and other exercises, outside the bed quadriceps exercises, the original sitting position to supine position, with a pillow under both knees to make the hip slightly flexed, both calves hanging outside the bed, ankle to sandbags The exercise will be performed by kicking the legs to the straight position and slowly falling down, 20-30 times per group, with 30 seconds rest between groups, 4-6 groups a large group, 2-3 large groups per day.