Embodiments of the present invention provide a radio bearer processing method, user equipment, and a base station. The method includes: suspending, by user equipment, data transmission of a bearer on a second base station; and sending, by the user equipment, a suspend indication to a first base station, where the suspend indication is used to indicate that the user equipment has suspended the data transmission of the bearer on the second base station. When the data transmission of the bearer on the second base station is resumed, the related protocol entity does not need to be re-established, thereby improving utilization of radio bearer resources.