Abstract: By using fuzzy grey correlation theory the fuzzy grey correlation analysis model and based on the Realizable k-epsilon turbulence model of Fluent 14.0 software,in order to further analyze the altitude angle,the azimuth angle,the mirror gap size and other factors on the wind load factor of dish solar concentrator.The results showed that the altitude angle has the greatest influence degree on the resistance coefficient and azimuth moment coefficient of dish solar concentrator,the fuzzy gray correlation degree is 0.8336 and0.7376 respectively,followed by the azimuth angle,which is relatively small,while the mirror gap has the least influence;As for the lift coefficient,lateral force coefficient,rolling moment coefficient,and overturning moment coefficient of dish solar concentrator,the azimuth angle has the greatest influence on it,the fuzzy grey correlation degree is 0.8244,0.7793,0.8117 and 0.7541 respectively,followed by the altitude angle,the effect of mirror gap size is the smallest.