After being divided into knowledge of essential illegality and knowledge of formal illegality,knowledge of illegality should be expended to field of negligent crime and punishment theory to be discussed.

A criminal should be taken as a recidivism if both his/her first offense and second offense belong to the negligent crimes.

His crime transformed into calculated crime and the preceding negligent crime is absorbed.

To determine criminal negligence,it has profound positive significance to abstract and summarize sci-entifically the constitutive elements of criminal nagligence and to make comparative research on it.

Thanks to forms of criminal negligence being displayed by its types,the further study of different types of criminal negligence would be helpful to comprehend criminal negligence thoroughly.

In recent years, there are more and more negligence crimes in these fields, especially the offense of vocational negligence.

Therefore, there is rare occurrence of negligence crime.

This article focuses on the reason that internet culture becomes the social incentive, highlights the connection between internet and the guilty mind of adolescent, including the process of raising a crime motive and criminal purpose, and finally forming the criminal personality.

The guilty mind of criminal existing when carry into execution criminality such as motive , demand, volition, and the psychology, owing to the unique features and stability of criminal s "character ",will put up in a unconsciousness status,and be indicative of otherness in purpose , criminal type, selection of violated objective.