On the basis of salt freeze thaw cycles, the erosion simulation system of wind blown sand environment was utilized to study the concrete erosion. The number of salt freeze thaw cycles（0, 5, 10, 25, 35, 45 times）, the erosion velocity（35,40,45m/s）, the impact angle（15°,54°,90°） and abrasive feed rate（60,110,160g/min） were chosen for the study. An L18（61×33） Taguchi orthogonal array was adopted to design the experiment and reduce the number of full factorial experiment. With scanning electron microscopy（SEM） micrograph of concrete after salt freeze thaw cycles, the reason of the maximum erosion ratio and erosion mechanism were analyzed. The results show that the maximum concrete erosion ratio is obtained under the condition of 25 times of salt freeze thaw cycles, erosion velocity of 45m/s, impact angle of 90° and abrasive feed rate of 60 g/min. The impact angle has a significant effect on concrete erosion damage by using the analysis of variance（ANOVA） method and it has 72.48% contribution rate.