The present invention relates to a method for transreceiving a signal in a wireless communication system supporting repeated transmission of a same signal, and an apparatus for same, and more specifically, to a method and an apparatus for same, the method comprising the steps of: repeatedly transmitting a first physical random access channel (PRACH) signal by using a first PRACH resource, wherein the number of transmissions equal a first repetition number; receiving a random access response (RAR) with respect to the first PRACH signal; and transmitting a second PRACH signal for requesting scheduling, wherein a plurality of PRACH resources are pre-established for transmitting the second PRACH signal, a second plurality of repetition numbers that are different are pre-established for the plurality of PRACH resources, wherein the second PRACH signal is repeatedly transmitted by using the first PRACH resource, wherein the number of transmissions equal a repetition number set for the first PRACH resource, when the first PRACH resource matches one of the plurality of PRACH resources, and wherein the second PRACH signal is repeatedly transmitted by using a PRACH resource corresponding to the first repetition number from among the plurality of PRACH resources, wherein the number of transmissions equal the first repetition number, when the first repetition number matches one of the second plurality of repetition numbers.