Method and system for measuring carriers in multi-carrier system

The invention discloses a method for measuring carriers in a multi-carrier system. The method comprises the following steps of: setting more than one measurement requirement for deactivated carriers; and according to different states of the deactivated carriers, applying different measurement requirements to user equipment (UE). Meanwhile, the invention discloses a system for measuring the carriers in the multi-carrier system. The system comprises a setting unit and a measurement unit, wherein the setting unit is used for setting more than one measurement requirement for the deactivated carriers; and the measurement unit is arranged in the UE and used for applying different measurement requirements according to different states of the deactivated carriers. By the invention, effects of quickly activating the deactivated carriers and saving electricity are achieved.