Abstract:Data sharing is a prerequisite for supply chain enterprises to make full use of data elements. Meanwhile, the development of blockchain technology is conducive to improving the level of supply chain data sharing. This paper analyzes the driving effect of blockchain technology on supply chain data sharing, and then establishes the evolution game model of supply chain multi-agent data sharing. By means of simulation, this paper explores the influencing factors and evolution path of supply chain data sharing. The research results show that: First, blockchain technology is conducive to data ownership confirmation, data standardization, data risks reduction and the enhancement of punishment, which promotes the data sharing in turn. Secondly, the incentive coefficient and penalty coefficient of data sharing have a positive influence on the willingness of multi-agent data sharing in supply chain, while the construction cost, sharing marginal cost and data risk coefficient of digital system have a negative influence on it.