Abstract: To provide security for the intelligent inspection personnel of fully mechanized working face, this paper puts forward a set of intelligent safety locking and unlocking strategy method of fully mechanized working face, using high precision positioning system implementation personnel identification, personnel positioning system, the host of the electro-hydraulic control system, support controller to realize harmony and logical judgment, in combination with the practical movement speed dynamic matching of inspection personnel, realize the personnel positioning system, intelligent hydraulic support electro-hydraulic control system of fully mechanized working face, inspection personnel security coordination. According to the activity of the inspectors, the automatic action area of the electro-hydraulic control system in the fully mechanized mining face is divided, and two situations that may cause action conflicts and their solutions are analyzed. In this paper, the system locking strategy, active unlocking strategy, passive unlocking strategy and their implementation methods are presented, and the personnel dynamic matching strategy is presented. Through field testing in Wangjialing coal mine 12309 face, hydraulic support electro-hydraulic control system response can be obtained at normal movement, through the system to unlock the measured response time showed that stent actual unlock time unlock longer than theory about 5 to 7 s, with the personnel positioning system signal intensity and stent controller delay unlock Settings. The research can provide technical reference for the safety guarantee of intelligent fully mechanized mining face.