1. Some Hui people surnamed Liu are ancient ethnic minorities, such as the Hui people who settled in Cangzhou, Henan Province in the Han Dynasty, taking Wei Liu as their surname.

2. Another part of the Hui nationality, surnamed Liu, is a descendant of the ethnic group that evolved from the Han nationality's surname Liu.

The above information is for reference only. It is suggested to consult the literature to obtain more accurate information.