The utility model discloses a real-time high formwork monitoring and alarming system which comprises a server, a sensing module, a closed-circuit television, a data transmission module, a data acquisition module and an acousto-optic alarm module. The output end of the sensing module and the output end of the closed-circuit television are respectively connected with the first and second input ends of the data transmission module, and the output end of the data transmission module is connected with the first input end of the acousto-optic alarm module successively via the data acquisition module and the server. The monitoring and alarming system deals with dangers of a high formwork at two levels, i.e., the sensing module monitors the total deflection and the axial force of a vertical rod in real time, and acousto-optic alarm can be raised; alarm can be also raised manually; the system also includes the closed-circuit television and transmits data wirelessly, thereby reducing complex wiring in the high formwork structure; and the real-time high formwork monitoring and alarming system can be widely applied to the field of construction.