To implement the Rural Revitalization Strategy, we must give priority to ecological civilization and lead the revitalization of beautiful countryside with green development. A large amount of smoke is produced by the burning of waste straw in rural areas, and therefore causes air pollution. From the perspective of green modular design, this paper analyzes the characteristics of straw materials and various design possibilities, so as to effectively use the waste straw, reduce the burning pollution, and convert the local materials into design resources. The green modular design philosophy was used to cluster the modules according to the correlation between function and structure. On this basis, the parts variant design of the clustered modules was carried out to form the extended design of product family, so as to improve the personalized needs and green attributes of products. Through clear implementation method of module division in straw material furniture design, it makes itself conform to the use function, aesthetic characteristics and green attributes of modern furniture products, expands the application scope of natural materials in modern furniture product design, improves the new method of straw material design in furniture field, and conveys the concept of green ecological development under the Rural Revitalization.