Provided are an Internet protocol tuner that can classify Internet packets transmitted through the Internet into broadcasting packets and communication packets based on channel selecting information and extract transport stream from the broadcasting packets, and a method therefor. The Internet protocol tuner of the present research includes: a network interface unit for receiving an Internet packet; a packet classifying unit for classifying the Internet packets received; a transport stream extracting unit for extracting transport stream from the broadcasting packet; a transport stream transmitting unit for transmitting the transport stream; a transport stream receiving unit for receiving the transport stream from the decoding unit; a controller interface unit for receiving control information including channel selecting information from an external controller; and a tuning control unit for controlling the packet classifying unit, and controlling the transport stream extracting unit.