Abstract:This paper embarks from the elaborating management of small and mediumsized Railway transport service provider, combines with the enterprise features, establishes an elaborating management system of small and mediumsized Railway transport service provider that can describe the relationship among variables. The model remedies many defects, thus it is reasonable to measure the influence of variable factors. Then, the paper taking transport branch of China Railway No.X Group Co., Ltd as an example, using the survey data verify the effectiveness of the proposed model, and the key factors that influences its refinement system management performance are found.