A collection adaptor management method, comprising: encapsulating a northbound interface adaptation program of one managed system, a service data model file of the managed system, and a northbound interface dependent file of the managed system into one Collection Agent Plugin Package, CAPP following a unified interface specification; after the CAPP is installed into a Collection Agent Management System, CAMS, creating a Collection Agent Plugin Entity, CAPE, corresponding to the CAPP; wherein the CAPE is configured for establishing a communication link with the northbound interface of the managed system, collecting data of the managed system and monitoring messages reported initiatively by the managed system, and wherein the CAMS is configured for parsing Network Management System, NMS, commands from the northbound interface of the CAMS and forwarding the parsed NMS commands to the CAPP and CAPE; and performing, through the created CAPE, data communication between the managed system and a Network Management System, NMS; wherein performing, through the created CAPE, the data communication between the managed system and the NMS comprises: when the CAPE is in a connected state, the CAPE receiving a service data collection command issued by the NMS through a northbound interface of the CAMS; the CAPE collecting, through a northbound interface of the managed system, data indicated by the service data collection command, and after parsing the collected data into unified format data which is able to be recognized by the NMS, reporting the unified format data to the NMS through the northbound interface of the CAMS. encapsulating a northbound interface adaptation program of one managed system, a service data model file of the managed system, and a northbound interface dependent file of the managed system into one Collection Agent Plugin Package, CAPP following a unified interface specification; after the CAPP is installed into a Collection Agent Management System, CAMS, creating a Collection Agent Plugin Entity, CAPE, corresponding to the CAPP; wherein the CAPE is configured for establishing a communication link with the northbound interface of the managed system, collecting data of the managed system and monitoring messages reported initiatively by the managed system, and wherein the CAMS is configured for parsing Network Management System, NMS, commands from the northbound interface of the CAMS and forwarding the parsed NMS commands to the CAPP and CAPE; and performing, through the created CAPE, data communication between the managed system and a Network Management System, NMS; wherein performing, through the created CAPE, the data communication between the managed system and the NMS comprises: when the CAPE is in a connected state, the CAPE receiving a service data collection command issued by the NMS through a northbound interface of the CAMS; the CAPE collecting, through a northbound interface of the managed system, data indicated by the service data collection command, and after parsing the collected data into unified format data which is able to be recognized by the NMS, reporting the unified format data to the NMS through the northbound interface of the CAMS.