A method and apparatus for a Minimization of Drive Tests (MDT) for delay-critical services is disclosed. In one embodiment, a method for performing a Minimization of Driver Test (MDT) by a first wireless communication node, includes: receiving a first message from a second wireless communication node; and determining at least one of the following: a data packet discard rate and a packet discard delay according to the first message, wherein the first message comprises a MDT configuration, wherein the MDT configuration indicates a measurement of at least one of the following: the data packet discard rate and the packet discard delay, wherein the MDT configuration comprises at least one of the following: a measurement period and a first Packet Delay Budget (PDB).