Abstract: The survey was made in 16 sites of Huangyan, Tiantai, Aianju and Linhai counties, Zhejiang Province. Nineteen species of human parasites were detected during the survey.Of 7840 persons examined, the overall parasite infection rate was 76.1%. There were 3359 persons habouring more than 2 species of parasites. The rates of multi-infection with 1, 2, 3, 4, 6 or 6 species of parasites were 33.4%, 32.7%, 16.1%, 4.3%, 0.3% and 0.3% in the population, respectively.The infection rate was found to be associated with the socioeconomic status, geographical conditions and source of drinking water.