AN IPTV receiver and a method of providing channel map information are provided. A network interface transmits and receives an IP packet through a network. An IP network stack checks a destination of the received IP packet and classifies the IP packet according to a protocol. A Service Information (SI) decoder parses a master SI table included in the IP packet to read channel map management information included in the master SI table, and parses a channel map record included in the IP packet to read a channel map instance included in the channel map record. An IPTV terminal function (ITF) operation controller controls the reception of the channel map record based on the read channel map management information.