To provide a vibrating screen eliminating the need of storing a maintenance floor manually when a machine is changed to a shipping posture.

The vibrating screen includes: a sieve device 5 for sorting objects to be sorted according to a particle size; an under-conveyor 8 extending forward from a lower side of the sieve device 5, and for carrying out the sorted objects having passed the sieve device 5; and an under-conveyor storing cylinder 58 for bending a discharge end side of the under-conveyor 8 upward with respect to a base end side. The vibrating screen also includes: a front maintenance floor 61 installed at a front of the sieve device 5 upward with respect to the sieve device to be tiltable; and a guide 71 abutting to the front maintenance floor 61 when a tip side of the under-conveyor 8 is bent, and push up the front maintenance floor 61 to stand up.