This paper discusses the key content of network centric warfare. It is pointed out that the information fusion technology is one of the biggest challenges, which network centric warfare faces. Also, the main research topics of information fusion technology are discussed. They are the function model, the architecture, information fusion system engineering and arithmetic. The developing actuality of the information fusion technology at home and overseas is concluded. At last, the paper analyzes the developing directions of information fusion technology for the network centric warfare.