Abstract: Surface net radiation flux is the difference between net radiation flux at the top of the atmosphere (TOA) and net radiation flux within the atmosphere. The relationship between surface net flux and TOA radiation budget can be expressed by different formula with different parameterization assumption of net flux within the atmosphere. In this paper, utilizing the NOAA-7 radiation budget data and the simultaneous surface radiation data over Qinghai-Xizang Plateau during the period from August 1982 to July 1983, the relations of them are discussed and the regression prediction equations are derived for deriving the monthly mean surface net flux from satellite observations. On the basis of above analysis, the spatial distributions of the monthly mean surface net flux are analysed.