It's found that there are great differences not only in the use structure of services and its changing trends,but also in the input level of services between America,Japan,Germany and China in the input-output analysis.It is the deficiency of China's service industry in today's service economy.Allowed for the economic development stage,industrial structure and so on,producer services should be the orientation for the development of service industry.Given the analysis of causes,the effort of policies should be put on the following items:to improve the market environment,to deepen the reform of the system,to attract vital talents concerning the industry,to introduce foreign high-end services and foster international enterprises of our own,etc.