Li Ming-yang studied military science in Berlin, Germany.
Mr. Li served as a commander of 10th Regiment of Jiangxi Army, commander of Jiangxi Army, commander of Jiangxi Forts, commander-in-chief of Jiangxi Forces stationed in Guangdong. Later he was appointed commander of 1st Division of Nationalist Revolutionary Army and Vice-Commander of the 31st Nationalist Army. Li Ming-yang also acted as a commander of 2nd Nationalist Division and concurrently of 6th Brigade of the Division. He was a member of Military Council of the National Government and member of Jiangsu Provincial Government and concurrently commissioner of Jiangsu Provincial Peace Preservation Bureau.