An IPTV receiver and a method of providing channel details 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 channel map record included in the IP packet to read a channel map instance included in the channel map record, parses a channel details record included in the IP packet to read the channel details information included in the channel details record, wherein the channel map instance includes channel details reception information. an IPTV terminal function (ITF) operation controller controls the reception of the channel details record based on the channel details reception information.