In the technological transformation of enterprises, in order to improve the competitiveness of the processing center are placed in the preferred position, want to use the least investment to obtain high precision, strong function, reliable operation of the machine. As the processing center one-time investment, technical complexity, to the user selection orders caused by many inconvenience; at the same time price, function and accuracy is an antagonistic unity. Therefore, the user how to choose the right machine is very important. Machine selection is not only based on machine tool technology, processing technology based on the actual application of integrated technology, but also a constraint by their own economic strength of the application of technology. Machining center selection, because the price is far more expensive than ordinary machine tools, so the constraints are more, machine selection is more or more prominent. The correct selection is to use a good machining center, the processing center to play the key to efficiency.