Abstract: Aiming at the application of electromechanical automation technology in excavation working faces of Fucun Coal Industry, an in-depth research is conducted. By introducing frontier technologies such as intelligent cutting technology, automatic loading and transportation system, working face environment monitoring system, and power supply automation system, etc, three-level linkage control architecture and fuzzy PID cutting algorithm are adopted to achieve deep integration of electromechanical system, thus promoting the intelligent upgrading and transformation of excavation working faces. The research results indicate that the cutting accuracy is improved from ± 50 mm to ± 20 mm, and the monthly average footage is increased by 50%; The equipment failure rate is reduced by 60%, and the comprehensive production efficiency is improved by 44.4%; The accuracy rate of environmental monitoring reaches 98%, and the alarm response time is shortened to 3 seconds; the reliability of power supply is improved to 99.9%. The application of electromechanical automation technology significantly improves the efficiency and safety of excavation work, achieves the goal of personnel reduction and efficiency increase, and provides solid technical support for the safe and efficient production of coal mines.