Abstract:The new type of railway comprehensive transportation hub under the background of "station-city integration" is not only the center of passenger transportation connection and different types of passenger flow conversion inside and outside the city, but also integrates commercial needs such as urban land development. The diversified evolution of its functions is often accompanied by a large increase in project investment. In the project decision-making stage, the construction scale and construction standards have a significant impact on the project cost. Based on the feasibility evaluation of the comprehensive transportation hub supporting project of Huicheng South Railway Station, from the perspective of coordination with planning and rationality of functional positioning, this paper analyzes its reasonable construction scale and construction standards for its rail transit embedding, station square and other engineering content, and proposes an active and effective investment control strategy in the decision-making stage.