Abstract: Against the background of modernization, social involvement has three connotations: a stronger motivation for involvement as the precondition, a broader range of subjects involved as the basis, and a more comprehensive network of involvement as the guarantee. The construction of institutional environment for social involvement ought to be enhanced from the aspects of policy environment, operation environment and social environment. The pivotal role of civil affairs administration in social construction can be performed more effectively if it depends on the “three endeavors” to broaden the range of involvement, on the “two platforms” to promote the degree of social involvement, and on the “two armies” to strengthen the ability of social involvement. In the process of enlarging social involvement, major attention should be paid to the handling of the relationship between social involvement and social autonomy, between social involvement and social mutual help, and between social involvement and social mobilization.

Key words: social construction, social involvement, civil affairs, social autonomy, social cooperation, social mobilization