Abstract: In view of the problems that the scenario of coupling risk factors is too little considered in the risk assessment of coal mine roof accidents, and it is difficult to quantitatively express the probability of risk occurrence, this paper constructs a WSR-TSS model based on WSR and TSS.Firstly, the risk identification framework of coal mine roof accident is constructed from the physical layer, the logical layer and the human layer, and six physical factors, two logical factors and four human factors are identified respectively.Secondly, based on TSS theory, 44 2D risk scenarios and 48 3D risk scenarios are established.Finally, WSR-TSS model is applied to a coal mine roof accident risk assessment.The results show that under the 2D risk scenario, the coupling risk accident probability of roof fragmentation and safety awareness is the largest, and the risk value is 0.598; under the 3D risk scenario, the coupling risk rate of roof fragmentation, support mode and safety awareness is the highest, and the risk value is 0.423 1.The results show that WSR-TSS model can comprehensively identify the risk factors of coal mine roof accident, consider the occurrence scenario of coupling risk factors and quantify them, and can provide new ideas and references for coal mine roof accident risk assessment.