Abstract: In view of the problems of strong periodicity of mine pressure behavior, intense roof activities, poor surrounding rock stability and others in the 10101 fully mechanized caving face of Hongyan Coal Mine, research is carried out on key technologies such as hydraulic support layout optimization, roof collaborative control, and dynamic regulation and control of roadway surrounding rock stability and mine pressure, etc. Through type selection and layout of high load-bearing hydraulic supports, combined with the coal mining propulsion way of "chasing machine moving frame+pressurized moving frame", a rigid-flexible combined roof control system is constructed; The roadway support adopts a joint support of anchor rod and anchor cable and grouting reinforcement to improve the overall bearing capacity of the surrounding rock; Relying on multi-source sensor and wireless monitoring network, a mine pressure monitoring and graded response mechanism is established, and dynamic regulation and control of the support system is achieved. After implementation, the periodic weighting step distance is stable, the fluctuation of the support load is weakened, the deformation control of the surrounding rock is good, and the support response is predictable, effectively improving the mine pressure controllability and the safety production support capability of the fully mechanized caving faces under complex geological conditions.