The invention discloses an electrically-controlled automated screening machine, and relates to the technical field of mechanical equipment. According to the screening machine, a hopper is installed at the upper left end of a screening tube; a pressurizer is installed at the right end of the screening tube; the lower right side of the screening tube is provided with a qualified particle discharging tube; the left end of the screening tube is provided with a large particle storage bin; the bottom of the screening tube is provided with damping springs; the damping springs are installed on a machine frame; a small particle screening tube is installed at the lower end of the qualified particle discharging tube; a qualified particle storage bin is installed at the left end of the small particle screening tube; and a small particle discharging tube is installed on the lower right side of the small particle screening tube. The screening machine has the advantages that rapid screening is facilitated, the use is convenient, the operation is simple and convenient, the working efficiency is high, and the time is saved.