Objective: Analyzing reimbursement limits of national basic medical insurance drug list 2017. Methods: The kinds of reimbursement limits and characters of relative drugs in quantities, categories and indications are concluded through methods of induction and correlation . Results: 903 drugs are limited in national basic medical insurance drug list 2017, the limits involve categories of insurance, serviceable range of pooling funds，second-line use and indications. Conclusion: the reimbursement limits are normative, ensuring rational drug use and efficiency of medical insurance funds.