Objective: Focusing on the stage of volume reporting for centralized procurement of medical consumables, the paper analyzes the practical difficulties and management bottlenecks in the process, providing empirical evidence for improving the accuracy, timeliness, and standardization of volume reporting work. Method: Using semi-structured in-depth interviews, five representative public hospitals in a city were selected to conduct research and analysis around core contents such as volume reporting process, data review, exception handling, and policy implementation. Result: The study found that there are three major problems in the volume reporting work, including underreporting, untimely reporting, and insufficient accuracy. The root causes involve multiple factors such as deficiencies in hospital system and process, insufficient prioritization, and the lack of incentive mechanisms. Conclusion: It is recommended to optimize the in-hospital volume reporting system and process framework, solidify the main responsibility for management, customize a reasonable incentive and restraint mechanism, and enhance the informatization management level of medical consumables in the hospital.