Abstract: Objective The key to the success of pre hospital care lies in the rapid and accurate implementation of on-site medical rescue personnel. In order to improve the success rate of pre hospital emergency rescue in our city,shorten the emergency rescue time, reduce the death rate and disability rate, this study aims to investigate the mastery and training of pre hospital emergency knowledge and skills among police officers in Yinchuanand to analyze the influencing factors, as well asto put forward training suggestions and suggestions on the basis of in-depth analysis, thus to provide reliable basis for improving the success rate of pre hospital emergency care in our city. Methods A new questionnaire was designed according to a questionnaire designed by Li Wentao and part of the 2015 edition of the international CPR guidelines. The questionnaire was divided into general information and first aid knowledge and skills. The general information includespolice classification, gender, age, years of service, rank, and the highest degree. First aid knowledge and skills include investigations into trauma first aid,cardiopulmonary resuscitation, drowning, first aid, poisoning, first aid, and heatstroke self-assessment, self-testing and training. The Cronbach's coefficient Cronbacha of scale=0.791. Under the premise of the informed consent of the respondents, 160 police officers in Yinchuan were selected to conduct a questionnaire survey, and a questionnaire survey was conducted to investigate the knowledge and skills of first aid among 160 police officers in Yinchuan. Results The rates of hospital trauma emergency and cardiopulmonary resuscitation were only 67.6% and 23.23% respectively. In the self-assessment, the police officers have more control over the first aid to the poisoning victims, and less knowledge about the trauma,cardiopulmonary resuscitation,poisoning, drowning, heatstroke, first aid, knowledge and skills; 66.9% of them had no training in relative emergency knowledge and skills. Those received first aid training more than 2 times within 5 years accounted for only 8.4%. Conclusion The police officers in our city do not have a good grasp of pre hospital emergency knowledge, and there is fewer related training. Training should be strengthened to improve the knowledge and skills of pre hospital emergency medical personnel.