The traditional data center built in the early stage has gradually no longer adapted to modern green requirements and performance requirements, so it needs to be updated. This paper takes a data center in Shanghai, China as an example, through the author’s practical engineering research, summarizes the engineering measures of transforming a traditional data center into a modern green data center, and proposes the update of the ceiling, ground, wall, air, waterproof and fire protection system in the data center. Suggestions for renovation.