A virtual reality system and a method of controlling working state of the virtual reality system. The virtual reality system comprises a video playing device and a virtual reality glasses box, and the virtual reality glasses box utilizes a screen of the video playing device to play a video content, the method comprises: establishing a wired or wireless connection between the video playing device and the virtual reality glasses box; when the video playing device is placed in the virtual reality glasses box, transmitting information of wearing state of the virtual reality glasses box to the video playing device; and controlling a playing state of the video playing device according to the wearing state of the virtual reality glasses box. The present disclosure controls the working state of the virtual reality device by the action of the user operating the device itself, and the user does not need to employ tedious and complicated operations to control each of the devices, which increases usability, and improves user experience.