Abstract:As the special equipment for collecting soil particles in wind erosion,research on sand sampler is ofsignificance.Sixteen sand samplers were designed with the difference in respect of position,area and meshsize of the screen,as well as position of opening for sand collecting.Through isokinetic tests and collectingtests in the wind tunnel,performance of the sand sampler with a 120-mesh screen on the top and a protrudedopening was considered to be the best of all sixteen.Its revised ratio of wind velocity at the opening to predetermined wind velocity is 0.870.Average collecting efficiency of soil with the particle size ranges of 0.10~0.25,0.075~0.10and<0.075mm were 83.58%,81.16%and 60.93%,respectively.It was suitable forcollecting the saltation particles and part of suspension particles.In addition,the sand sampler with simplestructure and simplified operation can collect wind erosion dusts at the different heights.It also meets the demands of indoor and outdoor researches if equipped with rotary apparatus.