A device management method, comprising: Configuring a relevant identifier at a wide area network WAN side for a management object which is for a gateway and is in a management tree of the gateway, and Configuring a relevant identifier at a local area network LAN side for a management object which is mapped by at least one terminal and is in the management tree of the gateway, wherein the relevant identifier at the WAN side comprises a uniform resource locator at the WAN side, a server identifier at the WAN side, or a server address at the WAN side, and the relevant identifier at the LAN side comprises a uniform resource locator at the LAN side, an access identifier of the gateway at the LAN side, or an access address of the gateway at the LAN side; and Triggering the at least one terminal to perform information interaction with the gateway according to the relevant identifier at the LAN side, and Triggering the gateway to perform information interaction with a corresponding server at the WAN side according to the relevant identifier at the WAN side; when the relevant identifier at the WAN side is a uniform resource locator of a software package at the WAN side, the relevant identifier at the LAN side is a uniform resource locator of the software package at the LAN side, and the uniform resource locator at the LAN side points to an access path of downloaded data stored by the gateway, the triggering the at least one terminal to perform information interaction with the gateway according to the relevant identifier at the LAN side, and triggering the gateway to perform information interaction with the corresponding server at the WAN side according to the relevant identifier at the WAN side comprises: triggering the gateway to perform a download operation on the corresponding server at the WAN side according to the uniform resource locator at the WAN side; and triggering the at least one terminal to perform a download operation on the gateway according to the uniform resource locator at the LAN side. Configuring a relevant identifier at a wide area network WAN side for a management object which is for a gateway and is in a management tree of the gateway, and Configuring a relevant identifier at a local area network LAN side for a management object which is mapped by at least one terminal and is in the management tree of the gateway, wherein the relevant identifier at the WAN side comprises a uniform resource locator at the WAN side, a server identifier at the WAN side, or a server address at the WAN side, and the relevant identifier at the LAN side comprises a uniform resource locator at the LAN side, an access identifier of the gateway at the LAN side, or an access address of the gateway at the LAN side; and Triggering the at least one terminal to perform information interaction with the gateway according to the relevant identifier at the LAN side, and Triggering the gateway to perform information interaction with a corresponding server at the WAN side according to the relevant identifier at the WAN side; when the relevant identifier at the WAN side is a uniform resource locator of a software package at the WAN side, the relevant identifier at the LAN side is a uniform resource locator of the software package at the LAN side, and the uniform resource locator at the LAN side points to an access path of downloaded data stored by the gateway, the triggering the at least one terminal to perform information interaction with the gateway according to the relevant identifier at the LAN side, and triggering the gateway to perform information interaction with the corresponding server at the WAN side according to the relevant identifier at the WAN side comprises: triggering the gateway to perform a download operation on the corresponding server at the WAN side according to the uniform resource locator at the WAN side; and triggering the at least one terminal to perform a download operation on the gateway according to the uniform resource locator at the LAN side. triggering the gateway to perform a download operation on the corresponding server at the WAN side according to the uniform resource locator at the WAN side; and triggering the at least one terminal to perform a download operation on the gateway according to the uniform resource locator at the LAN side.