Objective To compare the effects of three types intrauterine device(IUD)insertion immediately after vacuum aspiration.Methods 120 cases of artificial abortion immediately placed IUD women were selected.According to the IUD type,the patients were divided into the TCu3s0AIUD group 40 cases,active gamma type 40 cases in group IUD,palace copper 40 cases in ZooIUD group,followed up for 12 months.Results All of the subjects were not with IUD pregnancy.The termiration rate was Palace copper ZooIUD group 27.5％,active gamma type IUD group7.5％ TCu3s0AIUD 15.0％,three groups of termination rate had a significant difference(F=5.88,P＜0.05);threegroup IUD complications had no statistical difference(all P＞0.05).Follow-up for 12 months,palace copper group ZooIUD menstruation increase incidence rate of 42.5％,significantly higher than the other two groups 15.0％,20.0％(F=8.96,P＜0.05);the difference between the three groups in irregular bleeding was significant(F=17.77,P＜0.01).Conclusion The three kinds of IUD has good contraception effect,wherein the active gamma IUD has smaller adverse reaction,continue to use rate is high,so it is worthy of clinical application.