Method for determining absolute position of slide of electric linear direct drive and electric linear direct drive wherein the electric linear direct drive comprises a slider, a guide member, a plurality of permanent magnets, and one or more electromagnets

The present invention discloses a method for determining the absolute position of a slider of an electric linear direct drive and an electric linear direct drive, wherein the slide can move along a guide member in the direction of travel, a plurality of permanent magnets arranged along the guide member, and one or more electromagnets arranged on the slide, so that when the electromagnets are energized, the slide is driven. The present invention is characterized by the following steps: detecting features of the magnetic fields of permanent magnets at a to-be-determined slide position; storing reference features of the magnetic fields of the permanent magnets and assigning them to respective slider positions corresponding to each reference feature; comparing the detected magnetic field features with the reference features; and outputting the slider position pertaining to the reference features when there is correlation between the detected features of the magnetic fields and the reference features,.