The invention relates to a multi-sensor group integration type motion detection method and a head tracking-enabled virtual surround sound generation method. According to the technical scheme of the motion detection method, multiple sensor groups are adopted to acquire the motion-related information, and then the final detection data can be obtained based on the detection data of the sensor groups. According to the technical scheme of the virtual surround sound generation method, virtual reality equipment is mainly composed of a headset and a head-worn type display. The head-worn type display is provided with a first sensor group. The headset is provided with a second sensor group. The motion angle of a user head is detected according to the above motion detection method. After that, the audio effect is rotated based on the motion angle of the user head, and then a virtual surround sound capable of tracking the motion of the head is generated and played through the handset. Based on the above detection method, the motion detection result is more accurate and more reliable. Meanwhile, the motion of the user head is tracked based on the above virtual surround sound generation method, so that the auditory effect is higher in quality.