[Purpose/significance] Think tank’s data system,as an important tool for think tank’s data-driven decision-making,is the basis of improving the analysis ability and product quality of think tank.[Method/process] By studying the content and service elements of various data information of RAND corporation,this paper analyzes the data system and the construction measures of RAND,from the aspects of data sources,data processing,data products and data services.[Result/conclusion] This paper summarizes three types of data system of RAND and some measures of construction principles,financial support,department setting,post allocation and talent training.And some suggestions to improve the development of think tank’s data system are given.