Abstract: After the in-depth research, based on the ordered Logit model, OLS model and multiple processing effect model, this paper empirically analyzed the influencing factors of farmers’ willingness to participate in cooperatives in the mountainous areas of eastern Liaoning Province, and explored the differences in the impact of different types of cooperatives on household income of farmers. It specifically put forward countermeasures and suggestions such as innovating cooperation mechanisms, enriching joint forms, enhancing driving capacity, stimulating internal impetus,strengthening institutional construction, raising the level of norms, focusing on policy guidance,optimizing the external environment, strengthening guidance services, and strengthening institutional guarantees.