Abstract: Thus far there is no ideal instrument for measurement of three forms of movement of blowing sand. First of all,the measurement of creep load can only be done in the laboratory,its field measurement is simultaneously conducted with saltation load. In the observation processes of saltation movement attention should be paid to the surface stability to avoid vortex caused by sand-taped instrument, which will exert influence on the sand collection. Secondly, there is no suitadle instrument to measure suspension load, while the dust-taped instrument adopted by environmental protection departments can only be used to trap particles less than 20 u,especially less than10u,which is not suitable ror measurement of suspension load discharge Therefore, there is an urgent need to develop a new instrument for trap of larger suspension particles (20-100u). The existing inertial sand-taped instrument could be successfully used to measure saltation load, which usually makes up a majority of the total sand discharge , but its trap efficiency is poor for finer particles. The factors affecting the trap efficiency of existing inertoal sand-taped instrument were analysed.