Black Tortoise (Xuanwu)
The Black Tortoise (玄武, Xuánwǔ, “dark warrior”) is the guardian of the north, one of the Four Symbols, the animals of the four quarters of the sky in Chinese cosmology: a tortoise with a snake coiled round it. It stands for the north and for winter.
Meaning
The Black Tortoise is the only one of the four directional animals made of two creatures, the China Institute Gallery notes: a snake entwined round a tortoise. Its Chinese name, xuanwu, means “dark warrior”, and W. Perceval Yetts, in 1912, called it the Black Warrior, “the tortoise”, presiding over the northern quadrant and standing for winter. The Huainanzi’s chapter on the heavens gives the north to water and to the planet Mercury and names its beast xuanwu. A Han mirror inscription quoted by the China Institute Gallery pairs it with the bird of the south: “the Scarlet Bird and the Dark Warrior accord with Yin and Yang.” It faces the Vermilion Bird (Zhuque), as the Azure Dragon (Qinglong) faces the White Tiger (Baihu).
Origin and history
The tortoise was a sacred animal long before it guarded the north. Yetts noted that it was credited from the earliest times with carrying, in the markings on its shell, a clue to the mysteries of the universe; one tortoise helped the dragon-horse reveal the eight trigrams (bagua) to Fu Xi, and tortoise shells were used in divination. In the story of Nüwa told by E. T. C. Werner, the goddess repaired the broken sky and cut off the feet of a tortoise to set up the four corners of the earth. On a Han tomb tile from Shandong the snake winds round the tortoise and seems ready to strike. The figure continued in tombs through the Six Dynasties: the Henan Museum has a brick from Dengzhou of the Song of the Southern Dynasties (420–479), carved in high relief and brightly coloured, showing the tortoise and snake together.
A tortoise and a snake
The China Institute Gallery reads the tortoise as a model of the universe, its upper shell the sky and its underside the earth, and connects it with long life, stability and immortality. The gallery reads the union of tortoise and snake as yin and yang, a meaning the Han mirror inscriptions support. The V&A’s jade ring with the Animals of the Four Quarters calls the northern animal simply “the tortoise known as the Black Warrior of the North”.
The tortoise under the stele
The tortoise’s long life gave it another job. Yetts noted that a tortoise was often carved carrying an inscribed stele on its back, so that the person the monument honours shares the animal’s stable, lasting nature, and the China Institute Gallery gives the same reason for the stone tortoises under Chinese steles. Werner saw them on graves in north China, where a marble tortoise often carried the gravestone.
Zhenwu, the Dark Warrior god
The name Dark Warrior also belongs to a god. The V&A has a Ming porcelain figure, of the early seventeenth century, of “Zhenwu the Dark Warrior”, seated on a high throne with flowing hair and beard and his hands on his knees. In Korea the animal kept its old form: the V&A’s Goryeo slate chest is incised with the Dark Tortoise of the North among the Four Guardian Animals.
Read next
- Next in Chinese mythology and symbolsDragon and phoenixA dragon and a phoenix shown together: the emblems of the emperor and the empress, and at a Chinese wedding the groom and the bride. The pair is embroidered on the red wedding jacket and skirt, the qun kwa.
- A sacred tortoise helped reveal the eight trigrams to Fu Xi.Bagua (the eight trigrams)Eight figures of three lines each, whole lines for yang and broken lines for yin, set in a ring. They are the eight trigrams of the Yijing (Book of Changes), and in Daoism they stand for the changing states of yin and yang and for the eight directions.
See also
Vermilion Bird (Zhuque), Qilin, Chinese dragon (long), Flaming pearl, Fenghuang (Chinese phoenix), Guardian lions (foo dogs).
Sources
- Huainanzi, Tianwen xun 天文訓 (Chinese Wikisource), Huainanzi 淮南子, chapter 3 “天文訓” (Celestial Patterns), 2nd century BC; Chinese text on Wikisource, Wikisource (Chinese), Tianwen xun, “What are the five planets?”
- Directional tomb tile with Dark Warrior of the North (China Institute Gallery), China Institute Gallery, “Providing for the Afterlife: ‘Brilliant Artifacts’ from Shandong”, cat. 49, Directional tomb tile with Dark Warrior of the North, Eastern Han dynasty, Linyi Municipal Museum, China Institute Gallery, cat. 49, entry text and note 1
- Portrait brick depicting a tortoise intertwined with a snake (Henan Museum, China Daily), China Daily, “Portrait brick depicting a tortoise intertwined with a snake”, 27 March 2025, on a brick in the Henan Museum, China Daily, article text
- Symbolism in Chinese Art (W. Perceval Yetts, 1912), W. Perceval Yetts, “Symbolism in Chinese Art”, read before the China Society, 18 January 1912 (Leyden: E. J. Brill, 1912), The China Society, pp. 14, 25
- Myths and Legends of China (E. T. C. Werner, 1922), E. T. C. Werner, Myths and Legends of China (London: George G. Harrap, 1922), Project Gutenberg ebook 15250, George G. Harrap, ch. I; ch. III, Nü Kua Shih
- Figure of Zhenwu the Dark Warrior (Victoria and Albert Museum), Victoria and Albert Museum, London, figure of Zhenwu the Dark Warrior, porcelain, Ming dynasty, early 17th century, Victoria and Albert Museum, summary description
- Burial chest with the Four Guardian Animals, Korea (Victoria and Albert Museum), Victoria and Albert Museum, London, slate container for cremated remains incised with the Four Guardian Animals, Goryeo dynasty, Korea, Victoria and Albert Museum, summary description
- Jade ring with the Animals of the Four Quarters (Victoria and Albert Museum), Victoria and Albert Museum, London, jade ring (huan) carved with the Animals of the Four Quarters, Victoria and Albert Museum, object description
The same shape elsewhere
Browse symbols formed from curves and waves.
Researched, edited and approved by Rory Hansen before publishing. Last reviewed October 10, 2026. How we research
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