As a comprehensive philosopher, Mulla Sadra didn’t neglect of symbolist approach in constructing his philosophical system. In this paper, first we explain “symbol” and its etymology. Then, explore the status of symbol in his philosophical thought, Ebne Arabis’s affections, his symbolist approach to religion and his emphasis on symbolic language. Finally we show that it is not possible to associate such a system, including religion, philosophy, mysticism and theology, except with symbolist link, although there are other elements. The main findings are that, firstly, his theory concerning the priority of existence as well as the poverty of entities ultimately based on some kind of symbolic explanation; and, secondly, to justifying certain mythical conceptions of the holy text, he appeals to symbolic interpretation.