The invention relates to the technical field of door viewers, and specifically relates to an intelligent electronic door viewer. The intelligent electronic door viewer comprises an 
infrared illuminating lamp, an optical structure, a camera, a door-outside 
loudspeaker, a door-outside 
microphone, a far-
infrared probe, a door-outside 
photoresistor, a lock-inside 
photoresistor, a 
handle contact, a lock tongue contact, a 
doorbell button, a 6 V 
direct current power supply, a 3.3 V 
voltage-stabilizing circuit, a master control 
chip, a 
clock circuit, a 
crystal-oscillation circuit, a reset circuit, an SD card storage circuit, a touch control 
liquid crystal display screen, a door-inside 
microphone, a door-inside 
loudspeaker, a Wi-Fi transmission module, and a power indicating lamp. The far-
infrared probe can determine whether there is someone approaches the door, the 
handle contact is matched with the lock tongue contact so that whether there is someone trying to unlock the door without keys can be determined, and the lock-inside 
photoresistor is positioned at the inner part of a lock so that whether the lock is destroyed by violence can be determined. Compared with the prior art, a sensor employed by the intelligent electronic door viewer is simple and effective, mode determination is intelligent and various, and the security of 
access control can be effectively improved.