In the present disclosure, disclosed are a method for transmitting and receiving data in a wireless communication system and an apparatus therefor. Particularly, a method by which a user equipment (UE) supported by a plurality of apparatuses comprising a first apparatus and a second apparatus transmits and receives data in a wireless communication system comprises the steps of: receiving first control information from the first apparatus and receiving second control information from the second apparatus; receiving data from at least one of the first apparatus or the second apparatus; and transmitting, to at least one of the plurality of apparatuses, first feedback information regarding the first apparatus and second feedback information regarding the second apparatus, wherein the first control information and the second control information each comprises a downlink assignment index (DAI), and the DAI may be set on the basis of an index related to the plurality of apparatuses.