An ARP implementation method, a switch device, and a control device are disclosed. The method includes: receiving, by a switch device, an ARP packet; sending, by the switch device, an information reporting message including the ARP packet to a control device; and implementing, by the switch device, the ARP according to a MAC address included in an information delivery message sent by the control device, where the information delivery message is a message sent by the control device according to the information reporting message.