Abstract: According to theoretical analysis,the spectrum of the laser scintillation in atmosphere has relation to atmosphere transverse wind.So the detection and evaluation of the spectrum characteristics of laser scintillation can perform the remote sensing of atmosphere transversal wind.In our experimental system,the expression V=0.01715fc,here V is transversal wind speed and fc is turn point frequence of the laser scintillation spectrum,is derived.The experimental results are well agree with three cup anemometers.