The invention relates to a high beam with a vehicle distance-dependent brightness automatic adjustment function. The high beam comprises a shell, a lamp cover, a high beam lamp group, photosensitive sensors, photosensitive elements, an electrochromic lens, and a control
processing module which is disposed in the shell. According to the high beam of the invention, the
light intensity of the illumination of the high beams of meeting vehicles which changes with a vehicle meeting distance is automatically monitored; the change of a
light sensing degree is automatically sensed; illumination intensity signals and
light sensing degree signals are continuously transmitted to the control
processing module; the control
processing module controls the turning on or turning off of the high beam group and the electrochromic lens; the control processing module also turns on or off the tilt angle adjusting device, and controls the switching on or switching off of the high beam group and the electrochromic lens; the control processing module switches on or switches off a tilt angle adjusting device; by means of the control of the high beam group, the electrochromic lens and the tilt angle adjustingdevice by the control processing module, illumination intensity can be automatically adjusted with the vehicle meeting distance, and therefore, the high-beam illumination intensity of the meeting vehicles can be decreased, the dizziness or instantaneous
blindness of the drivers of the vehicles can be decreased, and the
driving safety of the driving of the vehicles at night can be improved. The high beam is suitable for being popularized and applied to various
types of road vehicles.