The invention discloses a VR system. Motion data of a user's head is collected through a head-mounted inertial measurement unit and sent to a head-mounted control unit; motion data of the user's handsis collected through a hand inertia measuring unit and sent to the head-mounted control unit; motion data of the user's feet is collected through a foot inertia measuring unit and sent to the head-mounted control unit; the head-mounted control unit controls running of a display unit according to the received data to enable the display unit to display more accurate virtual scenes. When a force isapplied to the user's hands in the virtual scenes displayed by the display unit, the head-mounted control unit generates a feedback signal to control vibration of a vibration motor, the user's hands can feel vibration, interaction between the virtual reality and the human body is achieved, the immersive experience of hand-foot combination games is realized, and the game experience of the user is improved.