Aimed at the problem that conflict coefficient K fails to effectively measure the degree of conflict between evidences in classical evidence theory, a new evidence conflict representation method is proposed. The use of the new method is as follows: Through the introduction of pignistic distance, and taking the probability of conflict coefficient K as a point on the plane rectangular coordinate system, the distance from this point to the original point on coordinates is a measurement standard for degrees of conflict between evidences. On the basis of the new measurement method, an improved combination rule is given. This algorithm is utilized to take the new conflict coefficient as a correction factor to revise the combination result when there is in conflict with evidence, and to perform the composition of results by adopting the composition rules of DS when there is in nonconflict with evidence. The simulation results show that the new measurement method and the improved combination rule are effective.