Abstract: In view of the problems of low roadheader remote cutting accuracy, high labor intensity, poor safety and others of the 3_lower1104 working face in Gaozhuang Coal Industry, a type of digital twin based integrated roadheader automatic cutting system of perception-modeling-control-interaction is proposed. The system integrates inertial navigation and total station to achieve 3D pose accurate perception of equipment, combines GIS and point cloud data to construct a high-precision roadway model, and develops a dynamic template correction algorithm based on real-time point cloud feedback, the template update cycle is ≤ 0.5 s for every 1 m of advancement, the planning efficiency is improved by 80% compared to the traditional static template. The industrial tests show that during 30 days of continuous testing on the 3_lower1104 working face, the standard error of the system’s cutting trajectory deviation is decreased from 18.3 cm of the traditional mode to 4.7 cm, the pass rate of the cross-section forming is improved from 67.5% to 92.8%, and the excavation efficiency is improved by 10%-15%. The distance between the operators and the head-on exceeds 100 m, achieving an unmanned operation mode of "remote centralized control+model-driven".