Objective To explore the effects of military stress on memory function in battlefield environment confined intensive training of peace-keeping soldiers.Methods 41 peace-keeping soldiers were chosen as the research objects.They were tested the memory function,respectively after they trained intensely in the domestic and in Sudan for five months.The memory function included verbal memory:WHO-UCLA auditory verbal learning test (immediate recall,the insert test,the short time delay memories,long delayed recall,long delayed recognition,visual memory) using the Rey Ostereitb Complex Figure (graphics copy and graphic delayed recall).Results The peace-keeping soldiers got lower scores in the insert tested(4.59±2.03) and graphics copy(35.85± 0.36) than in the domestic (4.85 ± 2.21,35.71 ± 0.46,P＞ 0.05),but there was no significant difference.They got lower scores in the immediate recall (41.68±9.87),the short time delay memories (9.27±2.77),long delayed recall (9.12±2.99),long delayed recognition (27.56± 1.70),and graphic delayed recall (16.90± 6.16) than those in the domestic(51.68±8.63,11.73±2.15,12.24± 1.96,29.00± 1.43,23.15±7.16,P＜0.01),and the difference was statistically significant.Conclusion The peace-keeping soldiers battlefield environment stress has a certain effect on the soldiers' memory function.