The embodiments of the invention provide gate machine equipment, a limit detection method of the gate machine equipment and a controller. A controller, a driver and a feedback circuit in the gate machine equipment are electrically connected mutually; a first limiting part is located at the position where a stop part collides with the door opening extreme position, and a second limiting part is located at the position where the stop part collides with the door closing extreme position; the controller receives a limit detection command for the stop part, and controls the driver to drive the stoppart to rotate, and the feedback circuit sends current information to the controller; and when the controller judges that the current information is abnormal, a first extreme position and a second extreme position of the stop part are recorded. According to the gate machine equipment, the first limiting part and the second limiting part do not need to be electrified, and are not prone to being damaged by liquids of electromagnetic wave, water and the like, the service life is long, and the cost is low.