Zhu Bajie is a wild boar rather than a domestic pig, belonging to the Eurasian wild boar and an omnivorous animal.
He calls himself a pig with a long mouth and fangs, and a bristle with fanned ears also looks like a wild boar. Sun Wukong also called Zhu Bajie "the appearance of a wild boar".
Zhu Bajie's image is a half-human, half-pig monster, his head and body are in the shape of a pig, but he has human intelligence and language abilities. He is characterized by gluttony, laziness, lust, gluttony, and often pursues pleasure and a life of ease.
Zhu Bajie was one of the four Tang monks and apprentices, and they went to the west to learn scriptures together to help Tang Seng retrieve the Buddhist scriptures. Zhu Bajie's main task is to protect Tang Seng and occasionally play the role of a miscellaneous man during his travels. Although Zhu Bajie sometimes lazily or pursues women for pleasure, he also shows a brave and loyal side, often fighting demons and monsters to protect the safety of his younger brothers and sisters.
The image of Zhu Bajie is one of the important characters in Chinese culture and is widely recognized and loved. He is both a comical and ridiculous figure, as well as an image with human weaknesses and a quest for perfection, and as such also goes through a lot of growth and change in the story.