A method and apparatus for performing and configuring a performance monitoring is disclosed. In one embodiment, a method for performing a performance monitoring by a wireless communication node of a wireless communication system, includes: receiving a first message from a core network of the wireless communication system; and performing a performance monitoring according to the first message, wherein the first message comprises performance control information of at least one corresponding service flow, wherein the performance control information comprises at least one of the following: a packet delay budget and at least one indicator.