所有权保留制度作为买卖合同中的一项重要法律制度,具有重要的研究价值。目前学界对所有权保留的法律性质的理解存在较大的争议,浅析学界的主要学说观点,在内容上以及结构上存在不足之处。从物权变动的角度出发,所有权保留已发生了所有权转移的法律效果,是一种担保性所有权。 As an important legal system in the contract of sale, ownership retention system has important research value. At present, there is a great controversy in the academic community about the legal nature of the reservation of ownership. There is a lack of content and structure in the academic field. From the perspective of the change of real right, the legal effect of ownership transfer has already occurred in the reservation of ownership, which is a kind of security ownership.