Abstract: Draft of the eighth amendment of crimnial law prescribes the crime of dangerous driving. How to understand the “danger” in this crime still needs research. On the nature of danger, is this crime concrete potential damage offense or abstract potential damage offense ?From the perspective of criminal law, how to verdict “danger”? This article specifically discusses that the crime of dangerous driving should be concrete potential damage offense. The judgement methods of ‘danger’ should based on object, reference, time and congnition of the danger. On the above basis, the article puts forward identification methods of “danger” for judicial practice.