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Bull Demon King
Journey to the West character
First appearance Journey to the West
Species Demon king
Spouse(s) Princess Iron Fan
Children Red Boy

Bull Demon King, also known as the Ox-King, or as his self-proclaimed title The Great Sage Who Pacifies Heaven, is a fictional character from the novel Journey to the West. He is the husband of the Princess Iron Fan and father of Red Boy. He is a demon king based in Sky Scraping Cave on Accumulated Thunder Mountain.

Bull King is a major antagonist of the novel Journey to the West by the late Wu Cheng'en, and its multiple adaptations. He can actually be considered to be the main antagonist of the story, despite his limited appearances. He also appears as main villain in the 2014 film The Monkey King and Doraemon: The Record of Nobita's Parallel Visit to the West as the main antagonist. He is one of the most popular Journey to the West villains, alongside his wife Princess Iron Fan, his son the Red Boy, the Six Eared Macaque, and the Baigujing.

Part in Journey to the West

In the early chapters of the novel, he becomes sworn brothers with Sun Wukong and six other demon kings, the Saurian Demon King, the Single-horned Demon King, the Roc Demon King, the Lion Spirit King, the Macaque Spirit King and the Snub-nosed monkey Spirit King. He is ranked the most senior of the seven, and styles himself "Great Sage Who Pacifies Heaven". He marries Princess Iron Fan and has a son, Red Boy, with her. He appears again in a later chapter when the protagonists arrive at the Flaming Mountains along their journey. Sun Wukong disguises himself as Bull Demon King to deceive Princess Iron Fan and takes away her Banana Leaf Fan. The real Bull Demon King visits Princess Iron Fan, who then realises she has been tricked. Bull Demon King disguises himself as Zhu Bajie to trick Sun Wukong and retrieves the fan. In the ensuing fight against Sun Wukong and Zhu Bajie, Bull Demon King reveals his true form, a giant white bull, and attempts to charge towards his opponents. Nezha shows up, captures Bull Demon King, and brings him to Heaven to let the Jade Emperor decide his fate.


  • In the adaptation in the 1996 Journey to the West series, the Bull King and the Princess Iron Fan has already known Monkey since childhood (they went to the same school that taught Monkey his fighting abilities) and were willing to give him the fan. But their obnoxious son, Red Boy, refuses to let his mother give the fan, thus forcing Monkey to enter her belly to force her to give him the fan.
  • In the 1988 film Doraemon: The Record of Nobita's Parallel Visit to the West as the main antagonist.
  • In the 2014 film The Monkey King, the Bull Demon King (Aaron Kwok) waging war on Heaven. Much of Heaven is destroyed during the battle, and the Bull Demon King faces off against the Jade Emperor (Chow Yun-fat), the ruler of Heaven. The Bull Demon King is defeated but before the Jade Emperor can kill the Bull Demon King.