In this paper, the operational status of the sliding crawler is studied under special conditions in the underground mine. With the continuous miner as the research object, the interaction between the sliding crawler in a continuous miner coal cutter and the underground as well as the contact characteristics of the various components within the crawler system are analyzed. The contact characteristics of the various components within the crawler system are established. Then, the multi-body interaction mechanics model of the sliding crawler is established to simulate the coal-rock road and running state of the track sliding friction. The crawler system operating parameters of the tractive force and support force at different tensioning displacements, as well as the simulation feature data extraction and conversion are obtained. Then, the machine's total travel power is indirectly calculated by the characteristic data of the machine's total travel power. On this basis, the power-time history curve of the actual real time operating state of the continuous miner is drew according to the underground field test to obtain the power time history curve of actual operating state. The order of magnitude of the conversion power of the simulation results is shown to be within a permissible range of the measured power of the experimental results. The study provides a reliable basis and valid path for the structure optimization and power matching of the crawler system.