Research conclusions: ( 1) Subsections focus on the designing and overall planning of the project，coordinate the whole designing、construction and purchase，take charge of the external accountancy and settlements in the whole project，put the progress and invoice check under centralized management etc． ( 2 ) Flat management simplifies the management hierarchy and makes it closer to the front － line，which helps improve the efficiency and reduce costs． ( 3) Analyze and measure the cost － benefit relationship of the machinery equipment for construction seriously． Make a thorough comparison of the performance － price ratio and after － sales service of the same equipment both at home and abroad for the final decision． ( 4) Enhance the skill training and all － around education of workers． Standardize field operations． Increase the proportion of local employees，which helps reduce costs on workers and promote the employment of the country to fulfill the community responsibility．