Amini was born on 12 September 1905. He was a grandson of Mozaffar ad-Din Shah Qajar through his mother, Fakhr ol dowleh. He completed his studies first in Darolfonoon and then in France where he graduated with a degree in law from Grenoble University, followed by his Ph.D in economics from Paris.He became involved in politics through the help of Ali Akbar Davar who gave him a position in the judiciary.