Continuous efforts are taken nowadays to prevent the destruction of the globe environment. For this purpose, utilization of the earth resources in the most effective way with the least impact to globe environmental consideration, because machine tool is very vital for the current industry. A prediction system of environmental impact for machine tools is described in this paper. The system has two evaluation models, machine tool motion analysis and machining operation analysis. They are constructed for the purpose of supporting the decision of the most effective machining method. In order to the feasibility of developed system is shown by a case study.