Political stability and social order and, vice versa social decline and decay, are in the center of political and social thought. Centuries ago, an Islamic thinker, Ibn Khaldun discussed social order and political stability and gave a theory in regard of Loyalty (Asabiyah). Nowadays, the debates on social order and political stability have focused on the concept of “social capital”, and specific attitudes have developed among researchers. The aim of this paper is content analysis of Ibn Khaldun thought about Asabiyah, by comparing it with the concept of social capital; claiming that this can be done by a comparative study between new and traditional concepts. In this method we can throw a new light on the thinker’s thought in order to reload his thought for contemporary era and solving some of problems of current society.