Abstract: Objective T o evaluate the feasibility and the effectiveness of sexual knowledge education on the undergr aduates in integr ated university.Methods The under graduates were divided into two groups:the disturbed group and the control group.The former was given some sexual knowledge education,and the latter not.In order to check the effectiveness of education,by the softw are of SPSS 10.0.Results The disturbed group obtained more know ledge about sex,venereal disease prevention and contracept ion measures.They could determine correctly some unhealthy pheno mena(sexual relationship out of marr iage,one-night sexual relationship,etc.).Conclusion The effect iveness of healthy education is positive.Dalian University should continue and enrich the program.