A method and apparatus for indicating skipping of access class barring (ACB) in a wireless communication system is provided. An upper layer of a user equipment (UE) receives ACB skip bits, which indicates whether ACB check is skipped for a specific application or service, from a lower layer of the UE, initiates the specific application of service, and transmits an ACB skip indication to the lower layer of the UE, if skipping of the ACK check is allowed for the specific application or service according to the ACB skip bits.