Embodiments of the present disclosure provide a service provisioning method in a coaxial cable system, the method comprises: a CMC receives a DHCP Ack message from a DHCP server and replaces an address of a TFTP server in the DHCP Ack message with an IP address of the CMC; the CMC sends the DHCP Ack message carrying the IP address of the CMC to the CM; and the CMC receives a request message from the CM for delivering a configuration file, acquires a configuration file corresponding to the CM, and after converting the configuration file corresponding to the CM into a format identifiable by the CM, sends the configuration file to the CM.