A controllable anti-disengagement high-voltage power line personal security line comprises a ground terminal chuck, a hook head and a connecting wire connecting the ground terminal chuck with the hook head. The hook head comprises a hook base and a spring pressing tongue and a control pressing tongue which are oppositely arranged and form a clamping portion; one end of the spring pressing tongue and one end of the control pressing tongue are hinged to the bottom of the hook base separately, the other end of the spring pressing tongue is located on the tail of the hook base, the other end of the control pressing tongue is hinged to a corner joint, a control wire is connected to the corner joint, the hook head comprises a clamping body and a control handle, and the control line penetrates through the connecting wire to be connected with the control handle.