The embodiment of the present invention provides a method of collecting performance data of cooperation Email forwarder (CEF) by a mobile phone mail service network management. The method comprises the steps of rowing up the collection tasks of the collected CEF performance data in task queues; starting a thread which controls the network management to monitor the port through a fixed simple network management protocol (SNMP), and collecting corresponding performance data of each collection task in the task queues in sequence. The embodiment of the present invention also provides a device of collecting performance data of cooperation Email forwarder (CEF). The device comprises a task queue generation unit for rowing up the collection tasks of the collected CEF performance data in task queues; a collection unit for monitoring the port through a fixed simple network management protocol (SNMP) according to the control of a pre-started thread and collecting corresponding performance data of each collection task in the task queues in sequence. According to the embodiment of the present invention, cost of SNMP port monitoring and needed thread can be reduced.