Abstract: A multi-needle sewing machine has a workpiece feed mechanism which includes first and second side supports located to opposite ends of the needle bar. A plurality of shafts extend between the side supports at locations spaced from the front region progressively rearwards towards the rear region of those supports. A plurality of transversely spaced endless belts pass around front and rear rollers rotatably mounted on foremost and rearmost ones of the shafts. Intermediate shafts carry respective front and rear guide rollers which guide an upper run of the conveyor belt to lie adjacent to a lower run of that belt and below the needle bar. The belts are driven so that the lower runs thereof travel from the front towards the rear of the side supports.