In order to research the characteristics of internal force applied to different steel structures of the coke oven enclosure for dust gathering and removal,this paper analyzes two different types of the pipe truss with 3D3S.Besides,the FEM analysis is carried out to summarize the stress conditions of internal members and support foundations of the two types of structures.It indicates the pipe truss with tension bars can effectively optimize the structure.The calculation and analysis above may be helpful for the usage of steel structure for coke oven enclosure.