Automatic alarming device for automobile traffic light

The invention relates to an automatic alarming device, in particular to an automatic alarming device for an automobile traffic light. The automatic alarming device comprises a signal acquiring controller, an transmitting device, a receiving device and an interior controller; the signal acquiring controller is arranged at each intersection and is used for acquiring the states of a traffic light; the transmitting device is connected with the signal acquiring controller; the receiving device is arranged on an automobile; and the interior controller is connected with the receiving device; the transmitting device transmits the state information of the traffic light; the receiving device receives the state information of the traffic light transmitted by the transmitting device; the interior controller receives the state information of the traffic light of received by the receiving device and sends corresponding warning information. The automatic alarming device can automatically prompts the state information of the traffic light at the intersection, thus, drivers can feel free and relaxed when driving through the traffic light intersection, and can pass the traffic light intersection safely and fast, thereby reducing the occurrence of traffic accidents.