For enterprises whose products need to be frozen and refrigerated transportation, the selection of green cold chain logistics service providers is one of the indispensable links, cold chain logistics service providers are involved in many different levels, so how to reasonably select cold chain logistics service providers is particularly critical. In this paper, the evaluation criteria system of green cold chain logistics service providers is established from five dimensions: cold chain logistics service quality, cold chain logistics service cost, cold chain logistics service capability, cold chain logistics green competitiveness and cold chain logistics enterprise management status. Combined weighting method based on minimum information discrimination principle, including BWM method and CRITIC method to determine comprehensive weight, avoids the limitation of single weighting method to determine index weight. Aiming at the randomness and fuzziness in the evaluation process of green cold chain logistics providers, a cloud model evaluation method of cold chain logistics providers is proposed. The case study shows that the proposed combined weighting method overcomes the one-sidedness of the single weighting method and improves the rationality of the weights. The cloud model evaluation method of cold chain logistics suppliers proposed in this paper is helpful to deal with the randomness and fuzziness in the process of weight combination, and improve the effectiveness and scientific rationality of the weight combination results.
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