To study the inhibitory role of taurine on H(2)O(2)-induced bovine lens epithelial cell apoptosis.By terminal deoxyribonucleotide transferase-mediated dUTP nick end labeling (TUNEL) detection and bovine lens organ culture, we examined the affect of taurine on the number of H(2)O(2)-induced bovine lens epithelial cells with apoptosis, the related comparisons and statistic analyses were carried out.(1) Lens epithelial cell apoptosis began before lens opaqueness (lens became opaque after 6 hours of incubation, while the lens epithelial cell apoptosis was detected after 3 hours of incubation); (2) Taurine could apparently inhibit H(2)O(2)-induced bovine lens epithelial cell apoptosis.Taurine has an inhibitory role on H(2)O(2)-induced bovine lens epithelial cell apoptosis and can delay and ameliorate the occurrence and development of cataract.