Born in 1944 in Diyarbakır, Mr. Aksu completed his primary education in Diyarbakır Cumhuriyet Primary School, and his secondary education in Ziya Gökalp High School. He graduated from Ankara University, Faculty of Political Science. Following his graduation, he began his working life as an Intern District Governor in Diyarbakır. Mr. Aksu served as District Governor of Ergani, Bismil, Genç, Akçadağ and Doğanşehir. In 1970, he was appointed as the District Governor of Kınık and following his military service, he held the positions of Yozgat Sarıkaya District Governor, Malatya Police Chief, Kahramanmaraş Acting Governor, Central Police Chief and Chief Police Officer between 1973 and 1980. He was appointed as Rize Governor on August 29th 1980. During his governor position in Rize, he also acted as Rize Mayor for a short period. He became Gaziantep Governor between the years of 1984 and 1987. Mr. Aksu was also elected as "The Bureaucrat of the Year” for more than ten times.
He was elected as 18th term Diyarbakir MP from Mainland Party on November 29th, 1987. He was also appointed as his party's group deputy chairman in Turkish Grand National Assembly (TGNA) in December 1987. He was appointed as Interior Minister for the 43rd Cabinet and carried out this role until June 23rd, 1991. He was re-elected as Diyarbakir MP from Mainland Party on December 24th, 1995 and acted as his party's group deputy chairman in TGNA and assigned to the State Minister position responsible for South East Anatolia Project in the 53rd Cabinet. He left Mainland Party and joined to Welfare Party on August 16th, 1996. He became a member of General Administrative Board and Vice President of Welfare Party. Following the closing of Welfare Party by Constitutional Court, he joined to the Virtue Party. Mr. Aksu was one of the founding members of Justice and Development Party and he was elected as MP from Istanbul 3rd Region on November 3, 2002. He served as Interior Minister during 58th and 59th Cabinets, acted as State Minister between 2009 and 2012.
He was elected as Board member at the 65th Ordinary General Assembly Meeting of VakıfBank, held on May 27th, 2019 and carried out this duty until March 2021. Mr. Aksu was elected as Independent Board member at the 67th General Assembly meeting. Mr. Aksu is fluent in German, married with two children and 4 grandchildren.