A method for handling network feature capabilities is provided. The method includes a UE determining whether a first access network with a first access type and a second access network with a second access type are registered on the same PLMN; if the first access network and the second access network register on the same PLMN, the UE determines whether a first registration procedure over the first access network occurred earlier than the second registration procedure over the second access network. The first registration procedure corresponds to first setting values for a plurality of network feature capabilities and the second registration procedure corresponds to second setting values for the network feature capabilities. If the first registration procedure over the first access network occurred earlier than the second registration procedure over the second access network, the UE adopts the second setting values for the network feature capabilities.