Dynamic evoluti on p r ocess of service industry of multinati onal company based on res ources and transacti on cost shows that with s pecializati on service enterp rises of service industry of multinati onal cor porati on, the ex panding of the enterp rises is restricted .When service industry multinati onal cor porati on conducts s pecializati on expanding, the cor porati on should choose M&A expanding mode, multip expanding modem atching internati onal cooperati on . Internati onal net work is the new trends for internati onal cooperati on evoluti on .