Disclosed are a method for controlling uplink transmission power for transmitting a plurality of codewords in a wireless communication system that supports a plurality of antennas, and a terminal apparatus for the method. The terminal apparatus for controlling uplink transmission power for transmitting a plurality of codewords in a wireless communication system that supports a plurality of antennas comprises a receiver for receiving, from a base station, a first transmission power control parameter including a first transmission power control indication value related to the uplink transmission power control; and a processor for determining uplink transmission power for transmitting said plurality of codewords based on the amount of information for each unit resource for each code word, if said first transmission power control indication value is not zero, wherein said first transmission power control indication value may be a value corresponding to each codeword.