The general treatment principle of acetabular dysplasia is early diagnosis, early treatment, conservative or surgical treatment. 1. Conservative treatment: different age groups, different treatment methods, newborn treatment is relatively simple, the child is active and unable to adapt to the cast immobilization, can wear a brace fixed, usually let the hip joint fixed to maintain the posture of flexion, abduction. When the patient is older and found late, and the patient is not well immobilized, cast immobilization can be used. Let the child’s hip joint be in the correct and not easily dislocated position for a long time, so that the hip joint develops and grows in the normal position. 2. Surgery: If the patient reaches the age of surgery and can not be reset conservatively, the hip joint capsule can be cut and reset to achieve a good alignment of the bone in the hip joint. If you miss the optimal age for surgery, advanced acetabular dysplasia, resulting in osteoarthritis that causes pain and limited walking, and poor hip movement, you will choose artificial replacement surgery to solve the pain and movement disorders through joint replacement surgery. Depending on the different physical conditions, the treatment methods are different and should be standardized under the guidance of the doctor.