One of the decisions of this meeting was the establishment of Sekolah Tinggi Islam (STI-Islamic Higher School).

STI began operating on July 28, 1945 and developed into a university called Universitas Islam Indonesia (UII) on November 3, 1947.

UII had faculties of Religion, Law, Education, and Economics, which began operations in June 1948.

In the early 1950s, shortly after the war, UII had to move its classes around the city of Yogyakarta, even using part of the Sultan's Palace and some of the faculty members' houses as classrooms.

From 1964 to 1970, under the leadership of Dr. Sardjito (a leading medical doctor), UII expanded to encompass 22 faculties: five were in Yogyakarta.

The rest were in three provinces: Central Java (Solo, Klaten, and Purwokerto); and West and North Sulawesi (Gorontalo).

Since the beginning of the 1990s, UII has been developing an integrated campus in Sleman regency, in the northern part of the province of Yogyakarta.

Is one of Waqf Foundation of Universitas Islam Indonesia can present to the public as excellent medical services.

Is a unit under Direktorat Pemasaran, Kerja Sama, dan Alumni (DPKA) Field III of Universitas Islam Indonesia.

UII Career Center established on May 12, 2003 and since 2006 UII Career Center is inaugurated by Minister of Manpower and Transmigration Republic of Indonesia as special job fair of Department of Manpower and Transmigration, Daerah Istimewa Yogyakarta.

Is a new building built from the Ministry of Housing grant and has been submitted to Universitas Islam Indonesia at the end of the year 2007.

Furthermore, among the recent accomplishments, there are currently 17 UII study programs that have received "Unggul" accreditation.

UII has an agreement with the Australian Consortium for In Country Indonesian (ACICIS) which help students from Australia to take program courses in Indonesia.

According to Eve Warburton of Inside Indonesia, opinion on staff and students was divided, and some professors stated that they did not wish to enforce it.