Automatic door opener

The invention provides an automatic door opening machine which comprises a driving part, a transmission assembly, a rocker arm and an angle detection control assembly, and the input end of the transmission assembly is connected with the driving part; one end of the rocker arm is connected with the output end of the transmission assembly, and the other end is connected with a door frame; the rocker arm is configured to be driven by the transmission assembly to rotate around the joint of the rocker arm and the output end of the transmission assembly so as to drive a door leaf to be opened and closed. The angle detection control assembly comprises an angle detection piece connected with the transmission assembly and a control piece electrically connected with the driving piece, the angle detection piece and the control piece are arranged in a magnetic induction mode so that angle signals can be synchronously output to the control piece at any time to accurately control the number of rotation turns of the driving