Cui is called "catfish" because when he was in college, his family conditions were difficult. He helps his father sell fish. The best fish sold in their family is catfish. Because of his frequent contact and understanding of catfish, he began to like this kind of fish and was called "catfish" by people around him. In addition, in his later work and entrepreneurial process, he showed strong adaptability and tenacious spirit, which matched the characteristics of catfish and further strengthened the image of this nickname.