Objective: Based on the relevant literature, the current status of risk management of a tertiary hospital was analyzed to improve risk management. Methods: Hospital risk management assessment team composed of the hospital quality and safety management committee members. Risk events happened in the past 5 years were screened for hospital risk items. Then, we used the concept of Kaiser model to design hospital risk assessment standard. A total of 300 medical staff were selected to carry out questionnaire survey on hospital risk items by stratified random sampling method. Results: Cognitive levels of people with different positions and different technical titles for the same event risk showed statistical differences. The primary risks included two kinds of risk such as medical disputes. The secondary risks included four kinds of risk such as logistical support. The third risks included three kinds of risk such as hospital infection. Conclusion: Classification management of hospital risk is helpful for improving the effect of risk management.