Danger jiuying negative crime must be in to see the danger does not save the accurate definition and classification of the premise, through the foundation of morality, humanity basis, the value of the underlying obligation source analysis of in the science of criminal law legislative provisions of the nature of the crime, causality in criminal law, criminal penalty purpose and value analysis, adhere to the scientific attitude of making a concrete analysis of concrete problems to "not rescuing the people in danger of sin" of comprehensive analysis.
Keywords: non rescue; source of duty; criminal law; thinking