The invention relates to a composition for increasing concentration and motility of human sperms. L-carnitine, acetyl L-carnitine, amino acids, taurine, levulose, a selenium source, a zinc source, folic acid, vitamin B12, vitamin E, astaxanthin and N-acetylneuraminic acid are used as raw materials, through an appropriate compounding ratio and synergistic reaction of components, the oxidation and oxidation-resistant dynamic equilibrium in a male reproductive system can be effectively regulated, sperm generation is facilitated, the condition that if the sperms are accumulated, movement is blocked, is avoided, the survival rate of the sperms is increased, the motility of the sperms is improved, and finally, the concentration and the motility of the human sperms are effectively increased. The medical composition can meet treatment requirements of complex illness states, is free from adverse reactions, durable in treatment effects, safe and reliable, and convenient to take, and is an effective drug for treating the symptoms that the sperms are poor in forward movement capacity, low in concentration and low in motility rate caused by various reasons. Data displays that through the composition for increasing concentration and motility of human sperms, the effective treatment rate is as high as 96%.