In order to meet the increasing demand for cost reduction and efficiency increase of engineering projects, lean construction management has gradually come into the attention of enterprise managers. This paper expounds the basic concept and connotation of lean construction theory. Modern intelligent construction technologies are introduced in the project implementation process. So that the concept of lean construction and the concept of project management are well integrated. From the technology optimization, process optimization, intelligent support, BIM construction simulation and other scenarios, this paper introduces several application examples of lean construction in construction in detail. Some experiences since the implementation of lean construction are summarized. Examples of benefit optimization achieved by lean construction are given. Experience references for the implementation of lean construction management in large group housing projects can be provided.