Objective To investigate the protective effects of sunscreen cream of VICHY on PLA soldiers in summer swimming. Methods （1）An 8 week, blinded, randomized study was conducted in 1550 PLA soldiers during summer swimming training to evaluate the efficacy of the sunscreen cream. The sunscreen cream was applied randomly to the face, arms, shoulder,and back of volunteer soldiers at 2 hours time intervals in experimental groups everyday(n=800). Subjects used a sun protection factor (SPF) 30 of sunscreen cream containing 5% benzophenone-3, octyl methoxycinnamate, and titanium dioxide. On the contrary, the control group applied placebo of cream emulsions. The IL-6 level of peripheral blood of PLA soldiers in summer swimming training was assessed by ELIASA. The Results were analyzed by comparing the occurrence of sunburn by Tukey test. Results The all accumulated cases were 1550, including 850 for experimental group, 700 for control group. The sun burn occurred in 54(6.35%) in experimental group, and 273 (39.0%) in control group on first week in sea training. Tukey test showed that there was significant difference in the percentage of subjects with improvement between experimental groups and control group (P＜0.01), IL-6 level was elevated in the 2-5 days. Conclusions Use of the sunscreen cream of VICHY provides a good protective effects of sunscreen for sea training in PLA soldiers.