Research on supply chain management and management approaches to increase the value of agricultural waste materials, a case study of rice straw, aimed to study the supply chain management model of rice straw and develop management approaches to increase its value. This was done by interviewing farmers who were members of the large-scale rice product group and had purchased straw presses under the project to upgrade large-scale rice fields with modern agriculture and market linkage in 2021. These farmers produced rice in the 2 0 2 1 / 2 2 crop year, along with processors/collectors and users of rice straw in Nakhon Si Thammarat Province.