The invention relates to a stamping device, particularly to a rotary chamfering device for anchor plates. The device is mainly formed by combining a stamping device with a workbench, and the stamping device is a jack. By the aid of the device, multiple holes can be chamfered simultaneously by the aid of one action, a traditional chamfering method is changed, the production efficiency can be improved, meanwhile, repeated mounting and dismounting actions can be avoided, and the labor intensity of workers can be reduced to a certain extent.