F rom four aspects the paper analyzes bridge and tie function of association,exp ounds important meanings of association legislation and the way of construction itself.

On Mass Organizations of Social Transition Period to China;

As an influential group in the construction of college campus culture,students\' mass organizations should play an important and distinctive part not only in developing their self-education,self-management,self-service,but also in the improvement of their knowledge structure,skills and their morality.

The flourishing development of mass organization is one of the important symbols of modern society,which not only changes the basic pattern of modern political participation,but exerts great influences on its current situation.

The acti vities of student mass organizations help students adapt t hemselves to the social role they are to play in future,help students have a better under-standing of the society,and help stu dents accelerate their socializati on.

The problem involving the development and management of social organizations remains a hot issue for the academic circle and the government in our country.

The construction of community CCYL is of great importance to accelerating urban construction and innovating the carrier of grass roots CCYL.