This book analyzes the existing problems of agricultural modernization in China's underdeveloped areas, and puts forward the agricultural modernization path of "multi-stage dual-chain synergy and three-industry integration" in underdeveloped areas on the basis of condensing the experience of agricultural modernization in developed areas at home and abroad, combined with the new requirements of major national agriculture-related policies. It is advocated that agricultural modernization in underdeveloped areas should take the tap of "adaptive advantages" as the breakthrough point, and realize regional agricultural modernization according to the four stages of alternative food network construction, alternative food network scale, agricultural industry chain integration and agricultural industry joint development. According to the requirements of coordinated development of agricultural production modernization and agricultural service modernization and "integration of three industries" in underdeveloped areas, the "Internet +" platform construction strategy, platform operation mechanism innovation and corresponding agricultural modernization policy guarantee system in four stages are studied.(AI翻译)