Method and user equipment for determining radio link failure

Provided is a method for determining the Radio Link Failure (RLF), which is used for determining the radio link failure when the Carrier Aggregation (CA) technology is applied. Said method includes: the User Equipment (UE) configured with multiple Component Carriers (CC) performs radio link quality detection on the component carriers; and when the UE finds that the radio links of the specified component carriers of the multiple component carriers all fail, the radio link failure of the UE itself is determined. The present invention also discloses an equipment for implementing said method.