Optimizing and stabilizing production and supply chains are an important measure to ensure economic development. Optimizing a production and supply chains of food, and stabilizing manufacturing and supply system is the foundation and prerequisite to ensure a complete victory against Covid-19, to ensure sustainability development of economy, and to enhance manufacturing industry in China. This paper introduces definitions of production and supply chains and their relationships each another, as well as discusses on how to optimize and stabilize production and supply chains, to reduce the risk of spread of Covid-19 throughout food production and supply chains. A proposal to build a technical strategy of food production and supply chains in China is also proposed in this paper.