Linear screen (linear vibrating screen) using vibration motor excitation as a vibration source, so that the material is thrown up on the screen, while moving forward in a straight line, the material from the feeder uniformly into the inlet of the screening machine, through the multi-layer screen mesh to produce a number of specifications on the screen, the screen, respectively, from their respective outlets, with low energy consumption, high yield, simple structure, easy maintenance, fully closed structure, no dust overflow, automatic discharge characteristics. Automatic discharge of materials.