The invention relates to a method, a device and a terminal for controlling public display equipment to display, wherein the method comprises the following steps: detecting a target user in a target region; when the target user is detected, controlling the public display equipment to execute a display operation; and when the target user is not detected, closing the public display equipment. The invention provides a method of controlling the public display equipment to display based on the target user. The method comprises the following steps: determining whether watching users are available atthe moment when the target user enters the target region of the public display equipment; then controlling the public display equipment to carry out a display operation; and when no target user entersthe target region of the public display equipment, closing the public display equipment. The public display equipment can be controlled intelligently, public display equipment resources can be saved,and the electric energy is saved.