Abdullah bin Abdalasis was born in Riyadh on 1924. His mother is descended from Chamarre, the main nomadic tribe in Naji province in central Saudi Arabia. Abdullah received systematic religious and military education when he was young. I like reading, horse racing and traveling in the desert. He established two libraries, located in Riyadh and Casablanca.

1964, former commander of Saudi National Guard.

1975 after the assassination of King Faisal, he entered the government and was appointed as the second deputy prime minister.

After King Khalid died in June 1982, he was appointed as the Crown Prince and concurrently served as the First Deputy Prime Minister and Commander of garde nationale.

On August 1 2005, King Fahd died of illness, and the prince succeeded to the throne, becoming the supreme leader of the Kingdom of Saudi Arabia, the supreme commander of the armed forces, the prime minister of the government and the commander of the National Guard, and holding the supreme power of the royal family and the state.

Married with six children.