In this paper,according to the extended Monin-Obukhov similarity theory for near surface atmospheric turbulence,the roughness(z₀),neutral drag coefficients(C_DN) and the exchange coefficients(C_HN,C_EN) of the sensible and latent heat over the different underlying surfaces,such as the Nansha sea region in South China Sea,the Gobi,desert and oasis over North China,and mid-and north-parts of Qinghai-Xizang Plateau,have been computed and analyzed by utilizing the observed data in the Nansha sea region in September 18~30,1994,HEIFE experiment on 1~24 August 1990 and the GAME/Tibet experiment in June,1998.Some meaningful results have been got.