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Aimed at the traditional D-S evidence theory is difficult to fuse the highly conflict evidence problem, and considered the Dempster rule has a superior focusing performance when evidence is normal, an improved combination algorithm based on selection standard and closeness degree is proposed. Introduce the concept of closeness to the D-S evidence combination, through the evidence of consistencySvalue to calculate its weight, so as to realize a weighted fusion of conflict evidence. SelectionSstandard of modified evidence is proposed at the same time, the combination of evidence can be divided into conflict and non-conflicting, and fusing the evidence with the improved algorithm and the traditional algorithm respectively. Through the example show that the proposed method not only have the information focus functions of the Dempster rule, but also better solved the problem of the combination of conflict evidence.