With sports development, players call for higher competition performance, training strength also becomes larger, sports injury increases accordingly. To tennis players, sports injury is even quite universal. This paper establishes tennis player health evaluation system, with an aim to let tennis player understand its own conditions and make reasonable adjustment in training plan combining with such conditions. At first through questionnaire investigation of 100 tennis players, it gets that main sports injury body parts are waist, knee joint, ankle joint, thorax and abdomen, wrist, shoulder joint, thigh and shank. Then combine with medicine relative knowledge to make analysis of such 7 factors influence on human health, construct judgment matrix, apply analytic hierarchy process method to get each factor relative influence weight on human health, establish sports health evaluation system. And find out the most important body part to tennis player is waist and ankle joint, then analyze the two parts and make suggestions.