Abstract：This study aimed to investigate the effects of step hurdle agility training on total response time (TRT) of the position 2, 3 and 4 in the front row among elite male volleyball players. Twelve elite players were recruited and divided into step hurdle agility training group (ATG) and control group (CG). After a six-week training, the block total response times in every phase (pre-test, after two-week, four-week and six-week) were measured by Block Agility Estimator System and tested using the two-way analysis of variance (ANOVA) procedure. Specific post-hoc comparisons of independent variables were conducted by Tukey HSD test. The results showed that there were significant differences between ATG and CG in TRTs after six-week training. In ATG, the Tukey HSD test showed a significant improvement in TRT after fourth week training. However, no significant improvement was found in the CG after six-week training. These findings demonstrated that agility training method indeed improves the block performance of elite volleyball players. The most possible reason is that step hurdle agility training enhances the step shifting ability and shortens the reaction time of stimulations; hence the moving blocking technique of players was improved. (Full text)