In 2012, a hospital participated in together by the hospital first aid of substation rescuers first aid missions and cause of medical damage compensation cases, after the court that the case should be in first aid center, for the defendant, a hospital is not the case the eligibility of the defendant.From the typical cases as you can see, in our country currently participating in the pre-hospital emergency medical treatment mode, all parties in the medical damage compensation cases of litigation subject qualification is a question worth discussing.In this paper, by analyzing the typical cases, to institute the parties in the medical first aid before the position in litigation.