The purpose of this study is to analyze the impact of social capital and other factors that affect the market access of coffee farmer households. The study synthesized theories, as well as previous studies, to provide criteria for measuring social capital of coffee farmers' households: including formal social networks, informal social networks, and trust. Besides, the study uses descriptive statistics, logistic regression, two t-average tests to analyze and assess the difference in social capital between poor and non-poor households of 235 coffee farmer households in Lam Dong Province. The results show that Agricultural Extension Associations, Association Organizations (proxy for official social networks), Agents at all levels, Colleagues - Friends (informal social networks), age, years of living in the locality, and labor have an impact on the market access of coffee farmer households. Some recommendations to improve market access of coffee farmers in the province have been proposed, based on the previous theories as well as the results of the research model The research, however, is yet to clarify the impact of social capital on each market of finance, land, labor, extension services, material, and output markets.