Abstract: For cooperated software development activity management based on network, following contents are researched: how to build a cooperated working environment between developer teams and develop a software management information system of supporting activity management, how to give a task partition and how to manage tasks which will be cooperated by developers on network. Furthermore,three models for three sections of cooperated software development activity management are given: software component model(SCM),relation model(RM) and task model(TM). Then, it describes SCM using software component, discusses RM using the principle: "Who should close the door he is last one of leaving room",analyses TM using task division method.