The lastest version of the software for automatically plotting and drafting weather chart has developed by using Fortran based on the Windows98 platform.As a result of introducing window,icon and menu techniques,it is characteristic of friendly graph and character operation interfaces,flexible and changeable man-machine interactions,faster processing of data,good quality of plotting and drafting,and high stability.Practice confirmed that the software satisfactorily meets the demand of meteorological observatories and stations.