The movement of human is a constant process of chain, and the lumbosacral joint located at the center location on extremities. It takes the pressure during the body' locomotion, and transforms extremities to produce power. The concept of functional training is to improve strength, skill, agility, and balance, and to promote the capacity of different sports. This article described the concept of core stabilizer, its beneficial effects on sport performance and the importance of applying on various sports training. From the previous studies, it was well known that improve core stabilizer strength would ameliorate the low back pain syndrome. Moreover, a sport specific training method combined with core stabilizer training would be more effective for sports performance.