With the rapid rise of outdoor sports in our country, the number of casualties increased dramatically. This article studies the moral issues behind the outdoor sports casualties in China from the perspective of ethics by using the literature data method and the investigation method. Starting from three perspectives: Individual participant, group participant and event organizer; this study looks for ethical issues in an accident, and discusses the causes. Furthermore, the author further analyzes the moral norms that our country outdoor sports should follow, and suggests that the following practices should be done to promote the harmonious developments of outdoor sports in China: 1) Strengthen moral education and the unity of knowledge and practice. 2) Improve self-discipline and improve personality. 3) Strengthen guidance of social public opinions, and value guidance. 4) Strengthen the moral evaluation and cultivation.