The working principle of the broad bean vibrating screen is that the two vibrating motors do synchronous reverse motion under the action of the vibration motor excitation force. After the broad bean enters the linear sieve screen, due to the inclined design, material is simultaneously subjected to its own gravity and exciting force, and a linear jumping motion is performed on the sieve surface. The broad bean smaller than the sieve falls into the next layer through the sieve hole, then larger than the sieve hole continually jumps forward and is discharged from the discharge port. Finally, the broad beans are screened out into different sizes of broad beans.