Abstract: In view of the lack of basic research on actual load of roadheader in China, the load signals of the adjusting cylinders and the oscillating cylinders of EBZ-160 type roadheader were measured by the large capacity data recorder in this paper. A method converting the loads from the cylinders to the cutting head was proposed, a simulation model of cutting mechanism was established, and the calculation loads of both type cylinders were obtained. Based on comparative analysis, the validity of the method and the simulation model were verified, which provided foundations for subsequent research on reliability of the key components and the whole machine.