Wireless alarm system against heating of power cable head connection point

The invention discloses a wireless alarm system against heating of a power cable head connection point. The wireless alarm system comprises a temperature measuring device, a camera device, a processing device, a wireless emission module, a wireless reception module, a control display device and an alarm device, wherein the temperature measuring device is arranged at the cable head connection point, the signal output end of the temperature measuring device is connected to the processing device, a lens of the camera device is aligned to the cable head connection point, the signal output end of the processing device is connected with the camera device and the wireless emission module via a drive circuit, and the wireless reception module transmits received data to the control display device and the alarm device. When heating or other abnormal condition occurs in the cable head connection point, a corresponding video circuit can be timely started to transmit video signals, a monitoring staff can notify maintenance staff of relatively detailed and accurate fault condition via video display, and convenience is provided for maintenance and first-aid repair.