Abstract: Web processing service(WPS) published by OGC is an important part of GIS Web Services.Existed WPS standard has an obvious shortcoming that data transfer amount of WPS is large,which limits the application of WPS.Using code transferring to replace the data transferring in WPS,we put forward a new WPS model based on code transferring.This model can avoid large work of data transfer in WPS,and will improve the efficiency of WPS.At last,the experimental results show that the new model is reasonable.