A chamfering device for a spring-making machine includes a body portion adapted to be mounted on a slide of a spring making machine and moved in unison with the slide, a motor seat fixedly mounted on an upper end of the body portion, and a motor having an output axle on which is arranged a tool holder provided with at least a cutting tool for cutting a spring wire extending into the tool holder from the spring making machine, whereby the chamfering device can be moved to align with the center of the spring making machine so as to cut a chamfer on an end of the spring wire.
