Abstract: Based on the survey data of 430 cooperative companies in Shandong Province, a structural equation model was constructed to analyze the impact of cooperative organizer competence and cooperative service efficiency on the comprehensive income of members.The empirical results indicated that the competence of the cooperative organizer had a significant positive impact on the effectiveness of cooperative services, and the effectiveness of cooperative services also had a positive impact on the comprehensive income of members.In the cooperative formed by non village collectives, the competence of the organizer had no significant impact on the comprehensive income of members, while in the cooperative formed by village collectives, the competence of the organizer had a significant positive impact on the comprehensive income of members; there was significant heterogeneity in the impact of organizer competence on the comprehensive income of members in the cooperative formed by village collectives and non village collectives. The mediating role of cooperative service efficiency was regulated by the trust of members. Members with higher trust in the organizer would actively cooperate with cooperative services to achieve higher economic benefits. The countermeasures and suggestions of strengthening the training and guidance of cooperative organizers, expanding the service scope and depth of cooperative throughout the entire production process, attaching importance to cultivating the trust of members, and promoting the construction of village collective led cooperative were put forward, in order to promote the sustainable development of cooperative and the growth of members’ economic interests.;

Key words: cooperative, organizer, competence, service efficiency, comprehensive income of members