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Objective: To study the therapy effect of ultraviolet blood irradiation and oxygenation(UBIO) on blood AChe activity and lung injury due to acute soman intoxication in rabbits. Methods :Forty rabbits were randomly divided into 4 groups: normal control group, intoxication group, routine therapy group and UBIO therapy group. Blood AChe activity and artery blood gas were analyzed 2 h after intoxication. ACP and AKP activities in BALF were determined respectively. Results:Blood AChe activity in intoxication group was lower than that in normal control group (P＜0. 05). BALF ACP and AKP activities in intoxication group were higher than that in normal control group. Blood AChe activities in UBIO therapy group increased and were higher than that in intoxication and routine therapy groups. Compared with intoxication group, BALF ACP and AKP activities were decreased (P＜0.05) in UBIO therapy group,while artery blood pH, PaO2 and SaO2 increased (P＜0.05). Conclusion: UBIO therapy can elevate blood AChe activity and alleviate lung injury induced by soman intoxication. So it may be a new way to treat acute soman intoxication.