In the study of mythology, a lunar deity is a god or goddess associated with or symbolizing the Moon. She is usually female, perhaps because of the association between women's menstrual cycles and the moon. She was also often associated with virginity, hunting, warriors (particularly female) and wisdom. She was usually sister, mother, daughter and/or enemy of the solar deity.
Chang E or Heng O. Unlike in other culture, the moon does not represent any deity in Chinese culture. The moon is a palace where immortals and fairies live.