a bearer under an idle mode signaling reduction mechanism are provided the method for processing a bearer under an isr mechanism includes the following steps a mobility management network element acquires an access mode of a current network the mobility management network element notifies a serving gateway of the access mode of the current network so that the sgw processes bearer according to the access mode of the current network it can be ensured that the access mode of the current network is consistent with the access mode for a policy and charging control strategy adopted during a bearing procedure under the isr mechanism application_number US 201113103547 A description the exemplary embodiments described below provide a method and a system for processing a bearer under an isr mechanism in order to make the technical solutions clearer and more comprehensible embodiments with reference to the accompanying drawings are described referring to fig1 a and 1b a signaling flow chart of a method for processing a bearer under an isr mechanism according to a first embodiment is shown the bearer processing procedure may be a bearer activation or processing procedure in this embodiment the bearer activation procedure under an isr mechanism is described user equipment ue in an idle state is moved from an original resident network to a current network the process of initiating a bearer activation procedure under the isr mechanism specifically includes the following steps in step 101 a pcrf delivers a pcc rule to a pgw the pcc rule is a pcc rule corresponding to an access mode of the original resident network if the pcc rule is not configured by the pcrf a quality of service qos rule may also be configured by the pgw in step 102 the pgw according to the pcc rule sends a.