合作思想是五四运动后从西方传入中国的一种进步思想。合作组织是在竞争中处于不利地位的弱势群体中的成员组织起来,通过资金的集中运营和劳动力的分工协作,实现参加者经济利益增强或经济地位提高的一种经济组织形式。身为早期中共骨干成员的留日学生于树德既是这一时期合作理论的积极传播者,又是中国合作事业的倡导者和重要的实践者。他通过在中国广大农村倡导和推行各项合作事业,增进了农民的互助合作意识,培养了农民的互助合作精神,建立了一批合作组织。这些活动不仅对传统的宗族势力形成了冲击,促进了中国农村从传统向现代的转型,而且为新中国成立后在全国范围内的广大农村地区开展合作化运动,提供了重要的实践经验和宝贵的制度资源。他对农村合作事业采取的支持而不包办代替、指导而不干涉经营、鼓励而不强迫的态度,值得今天借鉴。 The idea of ​​cooperation was a progressive idea that was introduced into China from the West after the May 4th Movement. Cooperative organizations are members of disadvantaged groups who are disadvantaged in competition. They organize themselves through the centralized operation of funds and the division of labor, so as to realize the economic organization of participants with enhanced economic interests or economic status. Yushu, a student studying in Japan who was a key member of the early CCP, was both an active communicator of the cooperation theory during this period and an advocate and an important practitioner of China’s cooperation. He advocated and promoted various cooperative undertakings in the vast rural areas in China, so as to enhance farmers’ sense of mutual aid and cooperation, cultivate the spirit of mutual assistance and cooperation among peasants and establish a number of cooperative organizations. These activities have not only brought an impact on the traditional clan forces, promoted the transformation of China’s countryside from tradition to modernity, but also provided important practical experience and precious experience for the cooperative movement in the vast rural areas nationwide after the founding of new China Institutional resources. His support for the rural cooperative undertaking is not accompanied by instructions instead of interference in management, encouragement and coercion, and is worth learning from today.