An aligning and feeding device capable of reliably aligning objects having a plane shape with an unequal ratio of length to width longitudinally and feeding them is provided.An aligning and feeding device has a rotary table 2 horizontally rotatable, drive means 3 for rotating the rotary table 2, a supply mechanism for supplying objects to be aligned onto the rotary table 2 and a guide mechanism 7 for defining a conveying path for the objects to be aligned conveyed by the rotary table 2. The guide mechanism 7 has an introduction guide 11, first pair of alignment guides 16, second pair of alignment guides 19 and pair of discharge guides 23 which each has a guide face and are disposed sequentially along the conveying path for the objects to be aligned. The first pair of alignment guides 16 and the second pair of alignment guides 19 each have an outer guide positioned so that a start point of its guide face is closer to the periphery of the rotary table 2 than an end point thereof, and an inner guide positioned so that a start point of its guide face is closer to the center of the rotary table 2 than an end point thereof.