Abstract: Under the background of "Internet plus", IT Application has become an important support for promoting scientific and technological societies to improve their business capabilities and enter the main battlefield of scientific and technological construction and economic construction. As a typical representative of science and technology society, China Association of Agricultural Science Societies has accumulated useful experience in information construction. China Association of Agricultural Science Societies (CAASS) has gone through a century of history. As a social organization, it serves vast number of agricultural science and technology workers, and takes the promotion of‘Sannong issues’(namely agriculture, rural community and farmers) as its own responsibility. Entering the information age, CAASS attaches great importance to the development of IT application, and actively explores the path suitable for itself. This paper reviews the development stage and expounds the status quo of the IT application of CAASS, and puts forward suggestions on the advancement of IT application in the light of the current construction of "Smart Science Societies".