Benchmark enterprises are important driving forces for the development of digital economy and living forces for Beijing to build a global digital economy benchmark city. Systematic analysis of key benchmark enterprises in Beijing’s four categories of digital economy has significant academic and practical value. This report selects 146 key benchmark enterprises of digital economy，analyzes the basic situation of these enterprises in multiple dimensions，analyzes their main effects from the perspective of economic promotion，points out the development characteristics with actual cases，and puts forward corresponding development suggestions.