The invention discloses a security protection system. The security protection system comprises a shooting device, a security protection switch, a processor and an alarm device. The alarm device is electrically connected with the shooting device, the processor and the security protection switch. The security protection switch comprises a housing body, a cover body hinged to one side of the housing body and a rotation rod. A groove is arranged in the other side of the housing body. A protrusion matched with the groove is arranged on the cover body. A stand column is arranged in the housing body. The middle part of the rotation rod is rotatably connected with the stand column. One end of the rotation rod is connected with a knob. An opening is arranged in the housing body. The knob penetrates through the opening. A connection part is fixedly connected with the interior of the housing body. The cross section of the connection part is of a triangular structure. A connection sheet connected with the connection part is arranged on the rotation rod. The connection part and the connection sheet communicate with a circuit. According to the invention, use failure caused by the fact that a security protection switch is not used for a long term can be avoided.