After completing his secondary education in Riyadh, Prince Muhammad went to the United Kingdom to join the in 1962 and was trained on the aircraft, graduating with a bachelor"s degree in military science and aviation. He further joined an advanced flight course, a combat aviation course and then, a fighter interceptor course in the United Kingdom.
Prince Saad was not given a significant political position due to his weak and negligible character like his half-brother Prince Bandar. Muhammad bin Saad has both military experience and governmental experience. He began his career as a military officer and he served in different branches of Saudi air force.
He was firstly appointed at the sixth squadron at Khamis Musheet base for lighting aircraft.
He, then, served at the Dhahran air base. His military career lasted until 1975.
From 1984 to 1992, Muhammad bin Saad served as the deputy governor of First Rate (at Lloyd's) Qassim Province. Then, he was appointed advisor to late Prince Nayef bin Abdulaziz, then interior minister, in 1992.
When late Prince Nayef was appointed second deputy prime minister in 2009, Prince Muhammed was also appointed as his advisor.
His tenure lasted until 2011 when he was made deputy governor of the Riyadh Province at the rank of minister. He was relieved of his duty on his request on 14 February 2013, and replaced by Turki bin Abdullah as deputy governor. His spouse is Princess Seeta, a daughter of late King Saud.
Prince Muhammad is also a member of the Allegiance Council.