Abstract: The nature of Open Access knowledge sharing mechanism is to build shared knowledge acquisition platform in the world and it aims to wipe out business monopoly of science information.This paper points out that the business monopoly of science information is the outcome of knowledge capitalization.But it is different from the reasonable secrecy of science knowledge under market model.And the open requirements of Open Access are not completely equal to the traditional communism specification.There difference between them are value judgment,realization path,institution guarantee and constraint objects.

摘要： 开放获取知识共享机制的本质是构建全球范围内开放共享的知识获取平台，其目的在于打破科学信息的商业垄断。本文指出，科学信息的商业垄断是知识资本化的产物，但它区别于市场模型下科学知识合理的保密行为。同时，开放获取知识获取范式中的“开放性”要求也不完全等同于传统的“公有性”规范，两者存在价值判断、实现路径、制度保证以及约束对象等四个方面的差异。