With the analysis of the problem in traditional optimal cutting-stock technology , this paper sets forth the significance of networked optimal cutting-stock . After that , a new kind of networked optimal cutting-stock system, based on Web Service technology , is presented .Then the constructing process , architecture and mechanism of this system are expatiated respectively. Centered onWeb Service , this system combines the networked multi-software optimal calculating model with cutting-stock system , by building updifferent granularity service and supporting multilayer service invocation .According to experiment , the system this paper discusses can effectively improve comprehensive optimal efficiency of cutting-stock.