Farming activity is one of efforts to increase economy level of the farmers. One of farming activities is ability to utilize farming land. Pagerwojo District of Tulungagung Regency is one of villages that is potential to be used as farming land. Current condition has been able to develop an organic-based farming, which offers great benefits for farmers and the society. Implementation of such farming is followed by social capital to support and utilize the resources in the environment. This research studied problems that focused on the impact of social capital on adoption of the organic farming innovation in Pagerwojo district in order to increase economy level of the farmers. Objectives of the research were: 1) Identify parameter of the social capital (trust, norm, and network) in Pagerwojo District; 2) Identify parameter on adoption of the organic farming innovation in Pagerwojo District, and 3) Analyze the impact of social capital on adoption of the organic farming innovation in Pagerwojo District. Method of the research was combining the descriptive and explanatory research. The location was selected in accordance with case study in Pagerwojo District of Tulungagung Regency. Data of the research was primary data that was collected through interview and respondents were selected using Snowball sampling technique. The analysis method used Likert’s scale, which will be conversed using factor analysis with dependent variable such as adoption of innovation, and independent variables that include network, trust, and norm. Therefore, it indicated what is the extent of social capital affects the adoption of organic farming innovation in Pagerwojo District, Tulungagung Regency.