Emphasis should be placed on establishing a comprehensive view of agriculture and food, promoting both agriculture, forestry, animal husbandry, and fishing, and constructing a diversified food supply system. Large scale agriculture is a three-dimensional agriculture that is developing towards multifunctionality, openness, and comprehensiveness. It is different from traditional, mainly focused on farmland management, single, flat small-scale agriculture. The concept of large-scale agriculture goes beyond the scope of simple farmland production and primary industry, requiring the promotion of coordinated grain and feed management, simultaneous development of agriculture, forestry, animal husbandry, and fishery, integration of planting, breeding, supply and marketing, and integrated development of primary, secondary, and tertiary industries, aiming to build agriculture into a modern large-scale industry. To ensure food security, we need to establish a concept of agriculture and food. The concept of big agriculture reflects the thinking of big food and the concept of big food. It not only focuses on the cultivation of crops such as grains, vegetables, and fruits, but also on the supply of important agricultural products such as animal husbandry, forestry, and fisheries. It also pays attention to other links such as agricultural product processing, circulation, and sales. By constructing a diversified food supply system, while ensuring the safe supply of bulk food crops, food resources are developed comprehensively and in multiple ways, Promote the transition from traditional food security to food security. Establishing a broad agricultural perspective can help increase the income of farmers. The concept of agriculture not only focuses on agricultural production, but also on a series of agricultural industry chain activities before and after production. The concept of large agriculture requires the extension and widening of the agricultural industry chain, increasing agricultural added value, which is conducive to promoting the structural reform of the agricultural supply side, forming a modern agricultural production structure and regional layout that is more suitable for market demand and more matched with resource carrying capacity, thereby consolidating the foundation of the industry chain for increasing farmers' income. Establishing a grand agricultural concept can solidly promote the construction of an agricultural powerhouse. Ensuring stable and safe supply of food and important agricultural products has always been a top priority in building an agricultural power. The concept of agriculture requires a focus on the national conditions and agricultural conditions, reflecting Chinese characteristics, and building agriculture into a modern industry, which is very consistent with the goal of building a strong agricultural country. By building a modern agricultural system with strong supply guarantee, strong technological equipment, strong management system, strong industrial resilience, and strong competitiveness, we continuously provide momentum for building an agricultural power. In order to better establish the concept of big agriculture and build agriculture into a modern industry, the following points should be emphasized. Firstly, build a modern agricultural industry system. On the one hand, it is necessary to ensure food security, and on this premise, enrich the structure of food varieties to meet people's needs for diversified food; We need to do a good job in comprehensive agricultural development, make reasonable use of various agricultural resources such as farmland, forest land, grassland, and oceans, and build a high-quality and efficient diversified food supply system. On the other hand, it is necessary to comply with the laws of industrial development, develop multiple functions of agriculture and diverse values in rural areas, promote the extension of agriculture from planting and breeding to secondary and tertiary industries such as agricultural product processing and circulation, cultivate new industries and formats in rural areas, develop rural characteristic industries, promote the integration of agriculture, culture and tourism, and the integration of primary, secondary, and tertiary industries in rural areas