中文摘要：

在交易成本视角下，社区支持农业本质上是通过由生产者端向消费者端的“泛纵向一体化”来节约交易成本的一项制度安排，其发展困境主要来源于交易成本节约不力和管理成本居高不下带来的双重压力。这主要包括：1）来自生产者方面的生态型要素成本高昂、松散型生产管理难度大和稳定的融资渠道缺乏等困境，2）来自消费者方面的多样化需求难以满足、农产品质量不稳定，3）来自供需双方的理念目标上不一致和信任基础薄弱等困境。在“互联网＋”发展新时期，应从促进平等性、增加透明度和提升信任感等几个方面着手，通过加快网络技术嵌入、运营模式创新来进一步降低社区支持农业交易成本和管理成本来突破其发展困境，让社区支持农业成为现代农业的一个有益补充。

英文摘要：

From the transaction cost perspective, community supported agriculture （CSA） is essentially system to reduce transaction cost by“Quasi-vertical integration”between producers and customers. The development dilemma of CSA mainly comes from the double pressures derived from inefifcient saving of transaction cost and high management cost. It primary includes： 1） producer’s dilemma of high price of ecological factors, difficulty of management, and lack of stable ifnancing channel;2） customer’s dilemma of facing variable needs and instability of product quality;and 3） mutual dilemma of different understanding of CSA target and weak trust base. However, in the new development stage of“Internet＋”, the CSA development dilemma can be broken by promoting equality, increasing transparency and enhancing trust. Especially, we should utilize the internet technology to reform operating pattern, to reduce transaction cost and management cost, and to promote CSA to become an important part of modern agriculture.