Based on QuikSCAT satellite remote sensing wind data over China offshore area(0°—45°N,105—135°E) during 2000—2009 and the wind results simulated by MM5 in 2007,through in-situ winds comparison,empirical orthogonal function(EOF) and singular value decomposition(SVD) methods,this paper studies the characteristics of QuikSCAT winds and MM5 simulations.Results show that the spatial distributions of two kinds of winds are similar and their speed variations are closely related.The spatial distribution of QuikSCAT winds is more reasonable and the magnitude of MM5 simulations is more reliable.With the PS(Pattern-Scaling) method,this paper extracts the spatial distribution from QuikSCAT winds and the magnitude from MM5 simulations,which shows that the spatial distribution is same as QuikSCAT winds and the magnitude of wind speed is equal to MM5 simulations.The preliminary test results show that the PS method can increase the accuracy of QuikSCAT winds in China offshore area.