Abstract: Objective: To improve the quality of teaching Environmental Hygiene cause.Methods: A series of measures were performed in class teaching with three aspects:optimizing teaching contents,improving teaching methods and ameliorating teaching means.As to experimental teaching,six subjects were integrated into experimental course of Preventive Medicine,and simulative scientific research experiments were developed actively.Results: Students' enthusiasms were aroused.Their knowledge level,innovation and practical abilities were elevated.Conclusions: Course reformation contributes to spark students' study interest,deepen their understanding of what they have learned,so that they are able to apply their knowledge to practice.Meanwhile,their capacity for analyzing and solving problems are promoted.