Replacement method for Cache row in LLC

The invention provides a replacement method for a Cache row in a last level cache (LLC). If a target Cache address is lost in the LLC, the replacement priority of a Cache row which is recently called in is calculated according to the operation type, the original Cache row with the highest replacement priority is replaced according to the replacement priority orderly principle, and the Cache row which is recently called in is stored to the corresponding position of the target Cache; if the target Cache address is in the LLC, the replacement priority of the current access Cache row is updated according to the Cache consistency state and operation type, and the priority of the current access Cache row is upgraded or degraded according to the replacement priority orderly principle. Performance losses caused by inclusive victims led into the inclusive Cache in a replacement mode can be effectively reduced.