Abstract:Acting as a distributed field science and technology infrastructure, the field station network of Chinese Academy of Sciences (CAS) has evolved to be an important scientific and technological infrastructure with comparative advantage in China. Especially, the Chinese Ecosystem Research Network (CERN) leads the construction and development of the national ecosystem station network. The top-level design and overall layout have been paid more attention in the construction of the field scientific observation and research network of CAS during the 14th Five-Year Plan, and the orientation and objectives of the field station network is highlighted further. The main tasks include improving the quality of observation data continuously to enhance the capability of data services and data sharing; emphasizing the construction of key scientific infrastructure in field stations and promoting the approval of Chinese Terrestrial Ecosystem Observation and Experiment Network (Kun-Mai Project) which both are benefit to improve the equipment level and enhance the core competitiveness of the field station network; strengthening the informatization construction of the field station to enhance operational support capabilities and improve the scientific research environment; deepening the scientific research for discipline frontiers and national scientific needs to embody the value of the field station network; building and expanding the specific observation networks; and emphasizing the international exchange and cooperation.