This research is to investigate the impact to sport ethics while athlete trying to achieve his goal by drug abusing. After analysing, here comes two problems. 1) The fuzzy in thinking model between "right" and "wrong". 2)The disorder in "truth" and "false" from "to be" to "to have". This study was to awake the inner value of sports and to emphasize the sport ethics in current situation. The conclusion indicates that before sport ethics can cease athlete from drug abusing, using methods of "education", "prevention", and "punishment" at the same tme maybe an efficient replacement.