Abstract: In the ancient legends, The Yandi was worshipped as a god of fire early, and was upgraded to Sun god later, his "Zhu niao" was the same thing as "Cun Wu"; Zhu Rong is the Secretary of Yan, so he also has the characters of fire and sun god; Zhu Rong is a title of fire rather than one's special name. Zhong Li, Wu Hui, Lu Zong all have the appellation of Zhu Rong because they are inherited the position of fire regularly. Zhu Rong was the ancestor of Chu, all of people offer sacrifices to him. Naturally, Yandi was venerated too. People considered Yandi, Zhu Rong as sun god, which is the product of combining the adoration of Hero, ancestor and sun.