The purpose of this study was to analyze the basis sector and the basis commodity in Banyumas, to analyze the factors to be considered the basis commodity price changes, as well as to analyze the supply and value chain linkages between regions. Analysis tool used is the analysis Quotien Location (LQ), shift and share analysis, the analysis of rigidity and discriptive analysis. Secondary data was collected by the method of documentation study while primary data were collected with a questionnaire, interviews and focus groups discution. The study found that agriculture is the basis sector in Banyumas, while rice is an excellent commodity in the agricultural sector in Banyumas. The most influential factor to the increase in rice prices is the increase in raw material costs, increased demand and availability of goods, while the determining factor is the decline in rice prices is lower demand and lower costs of raw materials