In response to the problems in complex ccoal seams mining, such as tedious procedures, low production, and low efficiency, the intelligent transformation of the No. 2321-34 fully mechanized mining face is taken as the engineering background. Starting from equipment transformation, mining technology, geological conditions, and other aspects, a centralized control system (SAM) for complex condition fully mechanized mining face is constructed, which enables real-time transmission and control of hydraulic support automatic action, transportation equipment linkage, and mining site conditions. It is proposed that the fully mechanized mining face equipment should be adapted to the characteristics of complex coal seams and the key functions of the equipment should be modified accordingly. Safety technologies such as single and bidirectional mining processes in complex coal seams, rapid installation of equipment, and rapid passage through large faults were studied. Industrial practice shows that this technology can optimize the process, achieving an increase in monthly average output from 30000 tons to 65000 tons, a 116. 7% increase in output, a 52% reduction in production team members, and a 261% increase in equipment efficiency, ensuring safe production and providing reference for safe and efficient mining in similar working faces.