Abstract: Objective: At present, researches on urban rail transit parking lines focus on relatively narrow aspects and consider limited factors. There is a need for a more comprehensive evaluation index system and integrated evaluation method for parking line layout schemes. Method: The main factors that affect parking line layout are analyzed from the perspectives of station layout, vehicle depot and turning tracks, requirements for fault trains to exit the main line, and operational flexibility of the route. Based on four dimensions：engineering conditions, project economics, fault rescue efficiency, and operational flexibility，seven comprehensive evaluation indicators are established to define and compute each indicator. On this foundation, an AHP\|TOPSIS based comprehensive evaluation model for urban rail transit is constructed to park line layout plans. Using Shanghai Metro Lines 6 and 7 as case studies, the model is analyzed and evaluated. Result &Conclusion: The research indicates that the comprehensive evaluation model for urban rail transit parking line layout plans is practical and effective.