D-S 证据理论是决策融合的主要方法之一,但典型的 D-S 理论不大适应高冲突证据组合.本文提出一种基于预处理模式的方法,在利用 Dempster 组合规则进行证据组合之前,将冲突焦元的基本概率赋值部分转移到焦元并集,采用证据之间的冲突额度来确定证据组合顺序.由于该方法将冲突化解为不确定的知识表示,可以处理冲突证据的组合问题. DS evidence theory is one of the main methods of decision fusion, but the typical DS theory is not suitable for high conflict evidence combination.This paper presents a method based on preprocessing model, before using Dempster combination rules to carry out evidence combination, The basic probabilistic assignment is transferred to the coherency set of Jiao and Yuan, and the order of evidence combination is determined by the amount of conflict between the evidences.Because the method resolves the conflict as an indefinite knowledge representation, it can deal with the combination of conflicting evidences.