Military network activities in outer space and celestial bodies are not prohibited，but all the human activities should abide by the principle of self-restraint and self-control. Moreover，the jurisdiction of other countries on space assets，such as satellites and their ground facilities，shall be respected，while malicious use of information technology to damage safety of space objects shall be prohibited. The attribution of network activities in outer space should be guided by the most significant relationship rules，the doctrine to balance between rights and duties，and the principle of distinction. In practice，the standard of general control，overall control or effective control will be selected and applied in the attribution of responsibility.