A method for a terminal to perform cell reselection procedures in a wireless communication system, and an apparatus supporting the same are provided. The terminal may: receive, from a network, a carrier spreading parameter and re-spreading priority; select a frequency on the basis of a re-spreading test; assign the re-spreading priority to the selected frequency; and perform cell reselection procedures on the basis of the assigned re-spreading priority. The carrier spreading parameter may be a variable for re-spreading of the terminal.