Abstract: The contemporary young people will be the motherland future, will shoulder is constructing for cause of building up socialism's heavy responsibility. But the young people illegal crime rate occupies high in the last few years not, this kind of present situation has caused various countries' government to take seriously with society's widespread attention. As special social group, young people's health becomes the long direct relation society the healthy development and stable. The present age youth offenses' present situation is day by day serious, the illegal criminal acts also suddenly develop along with the society, presents some new characteristics and the trend of development: For example illegal crime gang, low age, low culture and so on. To its illegal crime's reason, this article three main environment which locates from the contemporary young people (home environment, school environment, social environment) and individual factor carries on the thorough analysis to seek question the root, then proposed the young people illegal crime countermeasure and the suggestion, obtain similarly from the above three environment, through the improvement family, the school, the society the good factor, does not create the health for the contemporary young people, upward and suits its physiological, the psychological characteristic moral education environment, as well as through the perfect legal system system, strengthens the propaganda and education in the law, the construction multi-channel society defense line, reduces the present age youth offenses or again the crime.