Abstract: Based on the survey of 630 members of 36 cooperatives in Heilongjiang Province, the propensity score matching method was used to study the effect of Heilongjiang Province farmer cooperatives′ promotion of the integration of the tertiary industries on farmers′ income growth.The results showed that the integration of tertiary industries in farmer cooperatives could drive farmers′ income.The annual income of members of cooperatives that participate in the integration of tertiary industries was 2 622-3 161 RMB higher than that of members of cooperatives that did not participate in the integration of tertiary industries.The three-industry integration of farmers′ cooperatives would significantly increase farmers′ total family income, family business income, and family property income, but the impact on farmers′ family wage income and family transfer income was not significant.In addition, different integration modes of farmer cooperatives′ tertiary industry integration had different effects on the income structure of farmers′ families.On this basis, it was proposed that in the process of cooperatives promoting the integration of tertiary industries, the government should issue policies to support cooperatives in developing secondary and tertiary industries, give full play to the main role of farmer cooperatives in promoting the integration of tertiary industries; strengthen industrial support and continuously improve farmer cooperatives.The level of integration of the tertiary industries at the same time, it was necessary to guide and improve the interest mechanism of farmers′ cooperatives to drive farmers′ income.