Patients suffered from craniocerebral trauma with extermities fracture is one of the most common multiple injuries.Actually there is no comparative study demonstrating advantages of early or delayed treatment of skeletal injuries.To conduct a meta-analysis with studies published in full text to demonstrate database to show the associations of perioperative, postoperative outcomes of early fracture fixation(EFF) and late fracture fixation(LFF) for patients with severe head and orthopedic injuries to provide the predictive diagnosis for clinic.Literature search was performed in PubMed, Embase, Web of Science and Cochrane Library for information from the earliest date of data collection to October 2017. Studies comparing the perioperative, postoperative outcomes of EFF with those of LFF patients with severe head and orthopedic injuries were included. Statistical heterogeneity was quantitatively evaluated by ×2 test with the significance set P<0.10 or I2>50%.Thirteen papers consisting of 2941 patients were included (1224EFF patients; 1717 LFF patients). The results showed that EFF was related to a greater increase in blood loss, intraoperative blood infusion, crystalloid, hypotension, hypoxia, length of surgery, non-neurologic complications and mortality(P<0.1). No differences in ICU days, hospital days, neurologic complications and GCS on discharge scores (P>0.1).Compared with LFF patients, EFF patients demonstrated an increased risk of perioperative and postoperative complications and clear difference about complications between EFF and LFF about patients with severe head and orthopedic injuries.Level IV, therapeutic study.