The present disclosure relates to a method and an apparatus for controlling charging by using volume information of data, and more particularly, to a method and an apparatus for controlling charging for a UE by using volume information of data when a caching operation according to a byte caching mode or an object caching mode is performed.Disclosed is a method including receiving a caching operation request for data from another server; determining a caching mode corresponding to the caching operation request; and transmitting a PCC rule change request to the policy controller according to the caching mode, wherein the PCC rule is a rule that controls charging for the UE based on volume information of the data.