Hip fracture is a common type of fracture in the elderly.Complications such as pulmonary infection,pressure sore,deep vein thrombosis or pulmonary embolism often occurred after hip fracture,which may threaten the lives of patients.At present,surgery is the main measure for hip fracture,including joint replacement and internal fixation.The impact of surgical timing on postoperative mortality is the focus of attention of many scholars.However,there is still no consistent conclusion,and clinicians are often confused.The authors review the definition of surgical timing,the impact of surgical timing on mortality and process improvement in surgical timing in order to better guide clinical practice and provide new ideas for clinical research.