Computer emulating of EM scattenng of compos1te two-dimenslOn targets has been dealt with in this paper , and the computer emulating software has been built with Point-LineModel CPLM) and MoM-CGM-FFT hybrid technique on v1sual programmmg platform. Using these techniques , the speed of model building and EM emulating can be efficiently increased , and the computer memory and CPU time are reduced sharply. Finally , the EM emulating on a compos-1te column 1S made ,and the EM emulating results are presented.