This paper discussed the conception,illegal composition,legal characteristics,legal responsibility of cross-border mining and the control over it.

The perniciousness of act brought out the theory of illegal composition.

A Study on the Illegal Cost in Chinese Security Market;

Based on analyzing illegal cost and illegal income, this study has raised the relevant solutions according to the cause which is determined by following factors: the existence of economic law, the ratelevel of being charged, the chance for realizing illegal behavior and lawbreakers bias to the risk of law.