In this paper, the basic design idea of software and hardware of SWT-1 type sodar probing system,made in our country,is described.The user software of SWT sodar is also described more detailedly here. Continuous auto -acquisition and real-time processing of probing data and screen display of three-dimention wind profiles form of histogram could be realized. Moreover, the profiles of to'tal wind speed and wind direction, the values of temperature gradient, the wind speed and direction shear in the strata, and the relative statistical parameters, etc. could be printed out.