In order to measure the conflict degree of different evidences more accurately and credibly,a new measurement of conflict is proposed.In this aproach,by accumulating all the smaller basic probability assignment(BPA) of each two focal elements which have common elements,the new defined overlapping degree is computed,and then the conflict degree can be known based on the relationship between them.The experimental results show that the proposed method is more accurate and credible compared with the classical conflict coefficient and the distance of evidence proposed by Jousselme.