Hacham Yeshua Shimon Haim Ovadia was born to his mother Jamul and his father Mas'oud Ovadia on 27 Iyar 5632 (1872) in Sefrou, Morocco. His mother came from Hacham Eliyahu Ben Harosh's family and his father was the synagogue cantor. He began his studies with his father and with Sages Abner and Yoseph Againi. His study partner was Hacham Raphael Amram Mamman.
In 1890 he married Esther, Maimon Azran's daughter. They lived in deep poverty, and had five children.
In 1892 Hacham Shimon Haim Ovadia began studying at VeZot LiYehuda, the new yeshiva founded in the city for both rabbis and young students by Hacham Moshe Morciano. His father died in 1901, and Hacham Shimon Haim Ovadia was appointed in his stead as the synagogue cantor and would preach every Sabbath. He also served as the community charity fund's treasurer and was responsible for the distribution of funds to the needy.
In 1909, Hacham Shimon Haim Ovadia had the Hovevei Zion movement in the city of Sefrou merge with the one in Fes. The Zionist society operated for three years, at which time Zionist activity was outlawed.
In 1913 he became ill and was bestowed the additional name of Yeshua by Hacham Elisha Afriat, as a remedy towards his recovery.
Hacham Yeshua Shimon Haim Ovadia began to serve as Sefrou's rabbi in 1939, but within four years his health failed and his son, Hacham David Ovadia, replaced him in the rabbinate.
Hacham Yeshua Shimon Haim Ovadia passed away on 6 Elul 5712 (1952) and was buried in Sefrou. His writings have been published in Torah VeHaim, Yismach Levav, and Teshuvat HaShana.