Unemployment Insurance (UI) plays two roles: first, it is one kind of social insurance. UI promotes income distributions and protects unemployment risks; second, UI is one kind of employment security, it prevents unemployment risks and promotes re-employment. UI has a closer relationship with employment security than before. The qualified recipients of UI program must obtain unemployment recognition by employment agencies. There are more than a half number of countries in the world conduct UI program by employment security department, not by social insurance department or labor insurance department. Advanced countries consider that Ul should cope with full employment policy, not only to offer cash payments but also promote smooth employment adjustment. In 1990's, there are many countries, such as Korea (1995), Canada (1996) and Britain (1996) etc., which have established Employment Insurance System and integrated employment policy from UI program. Theirs experiences are valuable to be learned.