Firstly,the index system of comprehensive credit evaluation of transportation enterprises is constructed from four aspects:basic information,reward recognition,reputation assessment and administrative penalty.Secondly,the weights of each index are obtained by using game theory combination assignment method,and the comprehensive credit evaluation model of enterprises by game theory combination assignment-TOPSIS method is constructed.Finally,the data of transportation enterprises in Shandong Province are used for experimental analysis to obtain the credit evaluation results.The study shows that:the weighting of each first-level index is ranked as administrative penalty,award recognition,reputation assessment,basic information,indicating that the relevant departments should focus on assessing the administrative punishment index of enterprises;the credit evaluation results are consistent with the actual,which verifies the rationality of the evaluation model.