Abstract:In order to push forward the reform of the approval system for construction projects and solve the problems of long term multimanagement, repeated surveying and mapping, monopoly in the industry, isolated information, and low efficiency in the field of construction projects, “Multiple Measurement in One”reform in engineering construction in Shandong province has been carried out. On the basis of introducing the reform goal, necessity and concrete surveying and mapping matters, present condition of the reform has been analyxed. On the basis of relevant policy documents, a “Multiple Measurement in One”information service platform with relevant departments has been set up. In this paper, the overall structure of information service platform, main content of construction and key technologies have been studied, and practical construction ideas have been put forward.