Our country woman weight-lifting event has been kept ahead in the world for years, which indicates that our coaches and athletes have lots of successful experiences in weight-lifting training. However, it is little known that weight-lifting belongs to high-risk sports events, which has great damage to lumbar; some young excellent athletes tend to retire because of lumbar trauma that is regret for country’s inputs and athlete’s hard work. This paper analyzes weight lifters training and makes suggestions from medical perspective, with an aim to avoid lumbar injury and ensure lifters health. In this paper, firstly it makes investigation with 50 career women weight lifters, finds out that 82% lifters suffer lumbar diseases, the main causes are waist strain, excessive intensity and mistake motions such 3 factors. Then carries on structural mechanics analysis of weight lifters lumbar combining with human skeletal structure features from sports medicine perspective, gets two maximum lumbar force technical motions to research, and specifies the motions standard so as to reduce lumbar force as much as possible and make contributions to weight lifters lumbar health.