To develop the agro-food industry is an important task of industry restructuing in China, which is a key measure for agricultural sustainable development, and a main resource to increase farmers' income. The agro-food industry depends on the development of the manufacture industry, the development of the processing technology, the development of the food science and technology, and also the development of the modernization of agriculture. In order to realize a more prosperous society and to develop the agro-fcx>d industry,the first priority should be to build technical innovation system of agro-food industry. The necessity of the technical innovation system for agro-food industry, and the main problems lying in the agro-food industry were discussed in this paper. The detail suggestions,on how to quickly build the technical innovation system of agro-food industry was put forward.