The development and growth of Baitulmal Wattamwil (BMT) in the southern part of Batang Regency is still low. Farmers have not been familiarized with the products and services offered by BMT. The purpose of this research is to find out the description of farmers’ knowledge about BMT in the southern part of Batang Regency. The aforementioned knowledge discussed in this research is the knowledge related to the products and services offered by BMT as well as the farmers’ reasons to use syariah (Islamic) financial institution. This research used qualitative method, while the data collection technique was through library study, observation, interview and documentation. The sampling technique was random sampling, in which equal right was given to each of the subjects and the subjects were selected randomly. The research result shows that the farmers’ knowledge about BMT is still low. This is due to the fact that 8 respondents completely have no idea about the akad (contract) issued by BMT. They simply recognize that a financial institution called Baitulmal Wattamil exists. This farmers’ low knowledge phenomena is caused by their low education level as well as by the ineffective socialization and education about syariah financial institution.