To provide an egg aligning device capable of effectively preventing damage of eggs by lessening swelling of the eggs supplied at random than in a conventional device.

This egg aligning device has a guide member 17 arranged between a supplying conveyor 3 in which the eggs are supplied at random from an upstream side and a sending conveyor 2 for sending the eggs to a processing device on the downstream side and dividing the eggs supplied at random into 6-rows or 12-rows. The device is provided with a first conveyor 11 connected to the sending conveyor 2, a first sensor 21 for detecting the density of the eggs in the first conveyor 11, a second conveyor 22 arrange on an upstream side of the first conveyor 11, and a control means for controlling driving speed of the second conveyor 12 based on an output of the first sensor 21. When feeding speed for the eggs by the first conveyor 11, feeding speed for the eggs by the second conveyor 12 and feeding speed for the eggs by the supplying conveyor 3 are assumed as V1, V2 and Vc, respectively, the V1, V2 and Vc are constituted to be set to V1≤V2≤Vc.