A method for processing Packet Switch, PS, domain services, applied to a mobile terminal, comprising: allocating multiple Packet Data Protocol, PDP, link resources to multiple PS domain services, according to a PS domain service type, determining a way of allocating PDP link resources to the PS domain service type, wherein the way of allocating PDP link resources is one of the following: allocating a new PDP link resource to the PS domain services, initiating a secondary activation request of activated PDP link resources to a network side to establish a new PDP link resource, or setting the PS domain services to share the activated PDP link resources; wherein allocating the multiple PDP link resources to the multiple PS domain services comprises: one PS domain service of the multiple PS domain services sending PDP activation request message, wherein, the PDP activation request message carries identity information; in a condition that no PDP link resource corresponding to the identity information exists in the activated PDP link resources, allocating a new PDP link resource to the PS domain service sending the PDP activation request message; wherein in a condition that a first PDP link resource corresponding to the identity information exists in the activated PDP link resources, a secondary activation request of the first PDP link resource is initiated to the network side to establish a new PDP link resource for the PS domain service sending the PDP activation request message; or the PS domain service sending the PDP activation request message is set to share the first PDP link resource, wherein in a condition that the PS domain service sending the PDP activation request message has a high requirement on Quality of Service, QoS, the secondary activation request of the first PDP link resource is initiated to the network side to establish a new PDP link resource for the PS domain service sending the PDP activation request message; in a condition that the PS domain service sending the PDP activation request message has a low requirement on Quality of Service, QoS, the PS domain service sending the PDP activation request message is set to share the first PDP link resource; the multiple PS domain services performing data transmission on the PDP link resources allocated to the multiple PS domain services. allocating multiple Packet Data Protocol, PDP, link resources to multiple PS domain services, according to a PS domain service type, determining a way of allocating PDP link resources to the PS domain service type, wherein the way of allocating PDP link resources is one of the following: allocating a new PDP link resource to the PS domain services, initiating a secondary activation request of activated PDP link resources to a network side to establish a new PDP link resource, or setting the PS domain services to share the activated PDP link resources; wherein allocating the multiple PDP link resources to the multiple PS domain services comprises: one PS domain service of the multiple PS domain services sending PDP activation request message, wherein, the PDP activation request message carries identity information; in a condition that no PDP link resource corresponding to the identity information exists in the activated PDP link resources, allocating a new PDP link resource to the PS domain service sending the PDP activation request message; wherein in a condition that a first PDP link resource corresponding to the identity information exists in the activated PDP link resources, a secondary activation request of the first PDP link resource is initiated to the network side to establish a new PDP link resource for the PS domain service sending the PDP activation request message; or the PS domain service sending the PDP activation request message is set to share the first PDP link resource, wherein in a condition that the PS domain service sending the PDP activation request message has a high requirement on Quality of Service, QoS, the secondary activation request of the first PDP link resource is initiated to the network side to establish a new PDP link resource for the PS domain service sending the PDP activation request message; in a condition that the PS domain service sending the PDP activation request message has a low requirement on Quality of Service, QoS, the PS domain service sending the PDP activation request message is set to share the first PDP link resource; the multiple PS domain services performing data transmission on the PDP link resources allocated to the multiple PS domain services.