To deal with the disadvantage that classical evidence theory cannot combine highly conflicting evidence, a new combination approach is presented based on distance measurement. The evidence is regarded as space vector and distance measurement space is defined, in which the distance between evidence is calculated. Then the consistency measurement is established using distance measurement matrix by which the support degree is gained on the frame of discernment. Finally, the evidence consistency coefficient obtained from normalizing support degree is regarded as the weight to distribute conflicting probability, and improved evidence combination formula is proposed. Numerical examples prove that the improved formula can combine the conflicting evidence and the non-conflicting evidence. The contrast to other methods testifies the validity of improved formula.