Abstract: Due to its special structure and small height-width ratio, it is difficult to demolish the silo structure by directional collapse blasting, and the disintegration is not sufficient, which has become the difficulty of blasting demolition. In order to demolish the reinforced concrete silo safely and smoothly, the silo is simplified by theoretical mechanics calculation method, and the structural stability of the silo structure is analyzed. On this basis, the judgment equation of silo blasting rollover is deduced, and the reasonable blasting incision height is determined to ensure that the silo structure can be successfully overturned after blasting and avoid dangerous conditions such as recoil. At the same time, combined with the blasting engineering example, the finite element analysis software is used to establish the model to simulate the blasting demolition collapse process of the reinforced concrete structure of the silo, and the blasting toppling law of the silo is deeply simulated and analyzed. The actual blasting toppling law is highly consistent with the simulation, which achieves the expected effect of silo blasting demolition and can provide similar experience for similar projects.