In order to increase the economic benefits of building enterprises, as a vailid way,it is advisable to practise the method of project management and set up the market of essential factors of production, then, the responsibility, authority and benefit should be implemented down to everyone or every benefical subject. Analyzing the enterprises,present situation, the article aims to solve the probelems of how to set up the inner markets of talented persons, labour services, material supply, facility leasing and funds.