Soltani lifted 338kg in total after lifting 154kg in the snatch and 184kg in the clean and jerk.
Chinese Taipei’s Chuang Sheng-Min won the silver with 154-180-334 and the bronze medal went to South Korean lifter Park Hyeongo with 143-181-324.
The Asian Weightlifting Championships are being held in Jinju, Republic of Korea from May 5 to 13.
The continental championship is the second qualifying event for the Paris Olympic Games after the World Weightlifting Championships 2022.