Abstract By using data of China Family Panel Studies 2014, the paper empirically analyzes the impact of social capital on farmers’ poverty and its influencing mechanism. The study finds that, social capital can significantly alleviate farmers’ poverty when adopting national or international poverty standard, and the effect still exists under robustness test after using tool variable method to overcome endogenous problem. Social capital is positively correlated with farmers’ private lending, which can alleviate farmers’ poverty by influencing private lending, or in other words, to realize farmers’ poverty alleviation and targeted poverty alleviation by following the influencing mechanism of “social capital→private lending →farmers’ poverty”. Therefore, to increase farmers’ social capital and private lending plays an important role in alleviating farmers’ poverty