(on site of the smart agricultural machinery and smart agriculture forum of the 24th Annual Meeting of China Association for science and technology.) With the accelerated application of 5g, Internet of things, big data, artificial intelligence, blockchain and other technologies in agricultural production, agricultural machinery and agricultural production are moving towards refinement, digitization and intelligence. The 24th Annual Meeting of China Association for science and technology smart agricultural machinery and smart agriculture forum was held in Changsha on the 27th. With the theme of "smart empowering, science and technology strengthening agriculture", the forum focused on smart agricultural machinery and smart agricultural technology, industry, development, cooperation and other topics, built a platform for communication, exchange and win-win cooperation, and provided wisdom and solutions for China's agricultural mechanization, intelligence and regional economic and social development, And make greater contributions to serving the National Rural Revitalization Strategy. Yin Yulong, academician of the Chinese Academy of engineering and chief researcher of the subtropical Agricultural Ecology Institute of the Chinese Academy of Sciences, elaborated on the trends and problems of the animal husbandry industry, the intelligent optimization of animal nutrition supply, the prospect of animal nutrition artificial intelligence (AI) technology, performance measurement technology and breeding big data processing in the report entitled "intelligent feeding technology improves the value of feed and breeding industry". "Pork is the favorite food of the Chinese people. It eats at least 600million pigs a year. Pig farming has always been the pillar industry of China's agriculture." He believes that industrialization, intensification and automation are the development direction of modern pig industry, and the modern pig industry enabled by artificial intelligence still has broad prospects to be explored. Zhaochunjiang, academician of the Chinese Academy of engineering and director of the national agricultural informatization engineering technology research center, proposed in his keynote report that the future agricultural development must promote agricultural reform and achieve high-quality agricultural development: one is the change of production mode; The second is to solve the problem of no one farming land; Third, the decision-making should be as scientific as possible. With big data technology, it is possible for people to make intelligent decision from subjective judgment of experience to big data. Fuling, vice chairman of Hunan Association for science and technology and vice president and chief engineer of Zoomlion Heavy Industry Co., Ltd., said that Hunan attaches great importance to the development of smart agricultural machinery and smart agriculture, speeds up the exploration of the combination of agricultural mechanization and digitalization, vigorously develops smart agriculture, and focuses on promoting agricultural modernization. It will build a development highland of smart agricultural machinery industry chain as an important starting point to promote the development of agricultural mechanization and the upgrading of agricultural machinery equipment industry in the coming period. In his speech, Zhang Feng, President of the society of electronics of China, said that in the future, the society of electronics of China is willing to deepen cooperation with relevant departments in Hunan, face the development needs of smart agricultural machinery and smart agriculture in Hunan, carry out think tank services such as research on topics related to smart agriculture, planning, discussion and exchange, and help the high-quality development of smart agriculture in Hunan. (Xinhua News Agency)