The utility model discloses large-sized vehicle distance measurement equipment for a dangerous source point of a power transmission and distribution line. The equipment comprises two cameras arranged in the site of the dangerous source point of the power transmission and distribution line. The shooting ranges of the two cameras are overlapped and the two cameras have different shooting positions. The two cameras are connected with a video analysis server through a wifi and wireless router and transmit acquired images to the video analysis server. The video analysis server is connected with a mobile phone of management personnel through a 3G network in a short message communication mode. The large-sized vehicle distance measurement equipment has a reasonable structure and detects the distance from a large-sized vehicle to a high-voltage tower continuously through the cameras without needing artificial measurement. The large-sized vehicle distance measurement equipment can realize real-time and uninterrupted measurement, and give out on-site short message alarms for safe distances with potential safety hazards.