本文针对传统简化SDG模型方法存在简化不精、人工经验要求多的问题,提出了一种基于粒计算的SDG模型简化方法。该方法利用二进制粒矩阵约简节点组成的条件属性中的节点,在不影响完备性的前提下,达到简化模型的目的。最后以除氧器系统为例验证此方法的可行性。 In this paper, aiming at the problem of simplifying the traditional SDG model simplification and the need of human experience, a new method of SDG model simplification based on particle computing is proposed. The method uses binary granule matrix to reduce the nodes in the condition attributes composed of nodes, and achieves the purpose of simplifying the model without affecting the completeness. Finally, the deaerator system as an example to verify the feasibility of this method.