Objective: To review the epidemiological feature, clinical, and diagnostic data of post-traumatic diaphragmatic hernia (TDH) associated with pelvic fractures patients reported in recent 10 years. Methods: One case of delayed presentation of TDH after pelvic fractures taken place one month later was present, with a review on the literature of this kind of patients in our country. Results:The incidence of TDH associated with pelvic fractures was relatively rare, and the diagnosis were often delayed or missed. Although the trans-thorax approach was preferred for surgical closure in the acute phase, its mortality was 8.51％. Conclusion: TDH associated with pelvic fractures is difficult to diagnose because of their varied clinical and radiological signs and the patients may not present with symptoms for a long time following the injury. In clinical, a high index of suspicion with appropriate examination is the mainstays of management,which can also increase the prognosis.