Provided is a plate material edge trimming machine. By means of providing a lifting component that is capable of adjusting the position of a working cutting edge of an edge trimming cutter and a swinging device that is capable of changing the working angle of the edge trimming cutter, the cutter changing period of the edge trimming cutter is prolonged, and the usage and machining range of a production line is expanded, thereby improving the working efficiency of the production line.