The present invention discloses a remote control device, a control system and a control method. Here, the remote control device is used the payload mounted on unmanned equipment and unmanned equipment to remotely control, the remote control device detects the spatial orientation of the remote control device, in order to output the spatial orientation signal control and orientation sensor used to receive the spatial orientation signals output from the orientation sensor, to calculate the angular change in at least one axis of the remote control, the moving state of the corresponding axis of the mounting object on the basis of angular change and a microprocessor for generating a payload control signal for. By the method described above, the present invention can control the movement of the payload mounted on unmanned facilities on the basis of the angular variation of the remote control device to lower the control complexity of the payload unmanned facilities, control efficiency and improve the control effect.