The low level of openness and a big deficit in service sector have seriously restricted the sustainable development of China’s services trade. China needs to promote the opening of service sector and trade balance strategy, improve its service export promotion system, reverse the widening deficit in services trade and enhance its international competitiveness of services trade. The paper discusses the main task of the openness of China’s service sector from the views of area layout, open sequential industry and open path. It also discusses the main task of expanding service export from the views of export mode, export enterprises, export platform and export market. Finally, the paper puts forward policy recommendations from the aspects of mechanism, promotion policy and statistical monitoring.