Abstract: Objective To analyze the effectiveness of prevention and treatment of human intestinal parasitic diseases in Zhejiang according to the survey result in 2009 and historical data. Methods Kato thick smear method and transparent adhesive tape anal swab method were used to detect human intestinal parasitic worms. Results A total of 10 307 people were surveyed. 162 were found to be positive with roundworm, hookworm, whipworm or pinworm eggs, and the infection rate was 1.57%. The infection rate declined by 71.51% from 1989 to 1999, 67.25% from 1999 to 2004 and 79.01% from 2004 to 2009,respectively. Conclusion From 1989 to 2009,the overall prevalence of intestinal parasitic diseases in Zhejiang declined obviously, but it is still necessary to take appropriate and feasible control strategies to reduce the infection rate of pinworm in urban children and the infection rate of hookworm in rural residents