Shoulder arthroplasty surgery is one of the most effective method for treating shoulder joint diseases. In short term, the survival rate of the artificial shoulder joint is high, and the recovery effect of the patient is good, but in long term, the aseptic loosening caused by the wear and tear of the artificial shoulder joint will greatly increase the chance of surgical failure. Due to the complex structure and unclear typical motion of the shoulder joint, the wear test standards for artificial shoulder joints have not yet been published internationally. Therefore, it is necessary to study, analyze and summarize the biomechanical environment of the shoulder joint and establish corresponding motion curves, so as to provide references for the development of artificial shoulder joint wear test scheme and standards. Based on human shoulder joint activity rules, the shoulder joint activity ability can be divided into basic or physical activity of daily living ( BADL or PADL) and instrumental activity of daily living (IADL) by using the activities of daily living (ADL) scale. In this study, shoulder joint motion curves for several specific motion rules were established. The results lay foundation for the establishment of wear test scheme and standard of artificial shoulder joint.