The invention discloses an equipment identity information distribution method, device and system, and belongs to the field of terminal technology. The method comprises the steps of: acquiring an identity of an encryption module in electronic equipment and a media access control (MAC) address of a communication module of the electronic equipment; according to the identity and the MAC address, generating equipment identity information for identifying the electronic equipment; and distributing the equipment identity information of the electronic equipment to the electronic equipment. The equipment identity information of the electronic equipment is generated by using the identity for uniquely identifying the encryption module in the electronic equipment and the MAC address, the identity of the electronic equipment is unique, and the combination of the identity and the MAC address is also unique, so that the equipment identity information of the electronic equipment is not repeated, and the equipment security of internet of things is improved.