In 1990, the Faculty of Overseas of PNU was established to meet the demands of new categories of applicants for Persian Language and Literature programs of study worldwide at Bachelor, Master and specialized Ph.D Degree Levels. The aims of these programs are the development of the rich culture and literature of Iran among Iranians. Nationals of other countries, too, will be able to have a better understanding of the depth of the Iranian manner of thinking, culture and art through the Persian Language and Literature programs.

In the new organization of the university, the Faculty of Overseas is replaced by the International Study Center. This implies that the Center is authorized to offer all the degree programs of PNU. These programs are correspondence courses, which heavily rely on textbooks. The language of instruction is Persian. Currently, the Center has 1182 students admitted through Encompassing different Degree Programs in 55 countries.