Current article using analytical and descriptive methods attempt to analyze Islamic Republic of Iran soft power features, basics and components. Soft power for survival and continuity of democracy systems, comparing autocratic systems, has critical importance. Islamic Republic of Iran, as a religious democratic system, from initial point was persuading in acquire, cover, continue and improve of soft power components. Because through soft power improving in usual times, while attracting ideas, thoughts and hearts of parties, can save its hard and semi hard power for critical occasions. The findings of this research show that the type of used soft power in Islamic Republic, comparing liberal systems of west democracy, is of growth-based kind that means the ability of having influence on others behaviors whithout any compulsion and temptation, and based on conduction. Three main components of soft power in Islamic Republic of Iran, including religious democracy theory, justice and dying, and liberty and independence principles, have indiscerptible elements of eachother that are resulted from Mohamad pure Islam basics and especially Shieh top culture and comparing present politic systems, has could attract Iranian and region countries people thoughs and ideas.