Han was born in Xiamen, China and grew up in Taiwan. He obtained his bachelor's degree in Taiwan. In 1960 he assisted Elizabeth Hovhaness, the wife of the American composer Alan Hovhaness, in obtaining recordings of Chinese and Taiwainese music during her trip to Taiwan, and in 1962 served as translator for composer Lou Harrison.
Han eventually relocated to the United States, eventually obtaining U.S. citizenship. He received both his M.M. and Ph.D. degrees from Northwestern University and served as professor of music for over 30 years at Northern Illinois University in , Illinois, retiring in 2003. He is now a professor of music at the University of Kentucky in , Kentucky.
He specializes in as well as gamelan and directs these ensembles, formerly in the Asian Ensemble of Northern Illinois University and now at the University of Kentucky. His Chinese music ensemble from Northern Illinois University, formed in the late 1970s, was the first such ensemble at a North American university, and toured the United States and East Asia.
Han has a particular interest in the subject of music education, with an emphasis on the teaching of Asian musics. He has published widely in both Chinese and English, with twelve books and numerous articles appearing in journals and music reference works, and textbooks.
Han lives in Lexington, Kentucky.
* 1974 - ''The Use of the Marian Antiphons in Renaissance Motets''. Ph.D. dissertation. Evanston, Illinois: Northwestern University.
* ''The Lion's Roar: Chinese Luogu Percussion Ensembles''. Book and CD set. Danbury, Connecticut: World Music Press.
*1981 - ''West Meets East: Chinese and Balinese Music''. Performed by the Asian Music Ensemble, Northern Illinois University; Han Kuo-Huang, director. LP. New York: Folkways Records. Recorded in the Recital Hall, Music Building, Northern Illinois University, DeKalb. Side 1, band 1, and side 2, band 1, were recorded in December 1980; all other pieces were recorded in December 1978.