The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A method by which a first entity performs a policy control function (PCF) in a wireless communication system, according to one embodiment of the present disclosure, comprises the steps of: sensing the need for determination of a policy control function with respect to the first entity; transmitting a data analysis information request message for determination of the policy control function to a second entity performing a network data analytics function (NWDAF) on the basis of the sensing result; receiving data analysis information from the second entity; and determining the policy control function on the basis of the data analysis information, wherein the data analysis information is determined on the basis of a data access type.