This paper explores the applies AI+BIM technologies in the residential layout design. The research has shown that AI technology can provide creative ideas and divergent thinking for designers, while effectively improving the efficiency of residential layout design and shortening the design cycle, allowing designers to focus on the creative aspect of design. Compared to traditional design methods, AI has significant advantages in terms of design speed and creativity, and its integration with BIM technology can effectively help designers improve the efficiency of their subsequent work. The combined application of AI+BIM technology described in this paper can provide reference for subsequent residential layout designs and provide new ideas for Intelligentization and informationization of residential design workflows.