在制造网格资源市场中，买卖双方有关产品信息是不对称的，一些资源服务提供者（RSPs）利用其拥有的信息优势制造混同均衡，使得资源服务消费者（RSDs）在信息不完美情况下无法辨别资源质量高低的情况。本文提出基于精炼贝叶斯均衡的制造网格资源交易，在制造网格系统架构的支持下，RSPs通过承诺赔偿价格的信息作为传递手段，使RSDs获得更多的资源质量信息，提高其判断、辨别资源的质量能力，使RSPs达到分离均衡的目的，从而防止低质量产品的RSPs模仿高质量产品而向RSDs发送错误信号，以诱使RSDs购买、使用其低成本低质量产品，从而获得高利润。仿真实验结果显示此博弈模型有一个稳定、合理、资源卖方不会主动偏离的精炼贝叶斯分离均衡。

In the manufacturing grid （MGrid） resource market, some resource service providers （RSPs） with resource information superiority tend to make a pooling equilibrium. Therefore, resource service demanders （RSDs） cannot evaluate resource quality owing to the imperfect information. In order to solve this problem, this paper proposes a resource trading approach of manufacturing grid based on the perfect Bayesian equilibrium. In this approach, with the support of MGrid system architecture, RSPs promise a compensation for the display of resource quality, thus achieving in separating equilibrium and preventing low-quality RSPs from sending out a higher compensation that high-quality RSPs would promise. Simulated results show that the proposed game model achieves a stable, reasonable and perfect Bayesian separating equilibrium, from which RSPs would not deviate initiatively.