Abstract: At present, investment business has become an important source of benefit growth of large-scale state-owned enterprises. With the continuous increase of investment projects, the scope and difficulty of management have further increased. Relying on traditional methods can not meet the requirements of fine and lean management of investment projects. At the same time, the digital technology based on the "Cloud computing, Internet of things, Mobile Internet,Big data, Artificial intelligence, Blockchain " is in the ascendant, and various enterprises have put forward the "digital transformation" strategy to actively promote the deep integration of the main business and digital technology. In the field of investment business, how to enable high-quality development of investment business with the help of digital acceleration has become an urgent task for investment development. This paper takes a central construction enterprise as an example, from the perspective of the whole life cycle and the whole process management of the investment project,puts forward some useful ideas and methods for the construction of investment management digital platform, with a view to guiding the construction of large-scale state-owned enterprises’ investment management digital platform.