To realize the situation of contamination of vegetables by parasites' ova and larvae in the market of Guangzhou, 365 samples of 8 kinds of vegetables were collected from suburban vegetable farms, bazaars and downtown restaurants and examined by washing-precipitation method for ova and larvae of parasites. The overall positive detective rate was 21.37%. The positive detective rate of ascaris ova was 4.9% and that of hookworm larvae was 11.23%. The positive rate of parasite contamination on ready-to-serve raw vegetable samples collected from restaurants was 7.1%. The results indicate that the situation is undesirable and risky.