 It was said that Han Huang was capable at evaluating officials and strong in character, and during the five years he served as "Libu Yuanwailang", he paid great attention to detail and knew the records well.During the "Dali" era (766–779) of Emperor Suzong's son Emperor Daizong, Han Huang was promoted to be "Libu Langzhong" (), who supervised the "Libu Yuanwailang", as well as imperial attendant (給事中, "Jishizhong").At that time, there was an incident where Wei Dang (), the magistrate of Fuping County (富平, near Chang'an) was assassinated.