A state processing method, a user equipment and a base station are provided. The method includes: receiving state configuration information sent by a base station; and determining, based on the state configuration information, whether to set an initial state of the secondary cell and an initial state of a Bandwidth Part (BWP) associated with the secondary cell to a new state, where the new state is a state between an activated state and a deactivated state, and a quantity of secondary cells configured by the base station for a user equipment is at least one.