He became chief military aide to the president in 1965, and in 1970 was appointed first field army commander. In 1975 he was named deputy C-in-C of the ROC Army, and was promoted to C-in-C in 1978. He served as chief of the general staff from 1981 to 1989.
五十四年任總統府侍衛長，五十九年至七十八年，曾任陸軍第一軍團司令、陸軍副總司令、陸軍總司令、參謀總長。