Abstract: The network construct of Chinese informative radar is introduced in this paper. We conclude that it is necessary to develop informative radar equipped with high power klystron in our country. Till now, many high power klystrons researched by IECAS have been used in informative radar in China. The application state of these klystrons is illuminated combining with engineering. We obtained a suit of methods and techniques which can extend the life of klystrons as well as can enhance the stabilization of radar. Because there are several opposite problem between klystron and radar at present, the technical trend for high power klystron is put forward finally.