Embodiments of the invention provide a synchronous statically indeterminate mesh-beam excitation large-scale vibrating screen, including a screen box, a support spring group, a spring base, a motor mount, a tire coupling, and a motor, wherein, a statically indeterminate mesh-beam excitation body is arranged on the screen box, and the statically indeterminate mesh-beam excitation body has at least one synchronous eccentric block vibration exciter group and two self-synchronous eccentric block vibration exciter groups in it; each self-synchronous eccentric block vibration exciter group includes a self-synchronous transmission shaft fixed to the side plates of the screen box via a bearing chock, and self-synchronous eccentric blocks fixed to the side plates of the screen box in symmetry are arranged on the self-synchronous transmission shaft; the self-synchronous transmission shaft of the self-synchronous eccentric block vibration exciter group at the side of the motor is connected with a reducer via the tire coupling, and the reducer is connected to the motor via a transmission belt.