The invention relates to an automatic material clearing method. The automatic material clearing method comprises the steps that 1, an automatic material clearing workbench is provided and comprises a rope net protection subsystem, a falling detection subsystem, a control subsystem and an alarm subsystem; the falling detection subsystem is used for detecting whether operation personnel on the workbench fall or not; the control subsystem is connected with the rope net protection subsystem, the falling detection subsystem and the alarm subsystem and is used for controlling operation of the rope net protection subsystem and operation of the alarm subsystem based on output of the falling detection subsystem; and 2, automatic material clearing is conducted through the workbench.