Abstract: To better informationize the urban rail transit communication system and to realize its upgrading in construction, this paper analyzes the characteristics of and difficulties existed in the urban rail transit communication system engineering, and studies on how to apply the BIM technology into the laying of communication cables, to realize the BIM-based engineering management on the cable laying of urban rail transit communication. Experimental tests are conducted in the Guangzhou Metro Line 6. The result shows that, by using BIM technology, schemes can be simulated in the cable deployment, laying order and bracket positioning of cable laying engineering, which effectively achieves the cost reduction, and receives finee conomic and social benefits.