Abstract: The present paper reports a new surveying method for man-biting rate (bites per man per night by a vector population). A special human baited hut (HBH) was devised instead of the night-bite collection on human baits used in Huang-huai Plain for several years. The average man-biting rate was 1.7 and 1.0 by HBH in the years of 1982 and 1983 respectively, 14.6 and 20.9 by night-bite collection on human baits and 0.26 and 0.32 by collection inside local inhabitants' mosquito nets respectively. The ratio of HBH to night-bite collection on human baits was 1:8.6 and 1:20.9, while the ratio of HBH to collection inside local inhabitants' mosquito nets was 1:0.15 and 1:0.32. The seasonal fluctuation of vector population measured by HBH was in accordance with the other two methods. It is indicated that the collection in HBH is approaching to what actually happens to local inhabitants. Moreover, the new method has the advantages in saving man- power and avoiding sampling error.