He was widely recognized as an outstanding actor and the many productions that he directed provided him with a reputation as one of the leading theater directors in Iran.

During 9 years, the members of Koocheh theater group performed 17 plays from famous Iranian and western playwrights such as Bahram Beyzai, Athol Fugard, William Shakespeare, Gholam-Hossein Sa'edi, and Augusta, Lady Gregory.

Iranian cultural revolution caused universities to be closed, therefore Abdollahi voluntarily went to Kerman province to help earthquake-stricken people and collaborated in rebuilding damaged towns.

Because of universities reopening in Iran by the end of the cultural revolution, he came back to Tehran and prepared Sizwe Banzi is dead as the graduation thesis of his classmate Majid Beheshti.

[1] Having a critical approach towards the domestic affairs in Iran, Mostafa Abdollahi profoundly tried to introduce salient western playwrights to the Iranian society.

[1][3] During 46 years of artistic activity, Abdollahi received numerous awards from various festivals and was paid tributes by his colleague and also Iranian universities.