In the era of artificial intelligence, the change from knowledge communtiy to intelligent  space is the development trend of library space re-engineering. The practice exploration of the industry, the rapid development of technology, and the gradual improvement of the theoretical system are also provide services and support to re-creation the library intelligent space. This article combining the use of artificial intelligence technology in spatial reengineering and service in various fields of society,  and proposes a five-factor construction model  for  library intelligent space re-engineering  as "human-things-object-field-time", and believes that in the future,artificial intelligence can be applied in intelligence information, Intelligent search, human-computer interaction, knowledge consultation and other fields, and finally developed a strong application services in multiple areas.