Assistant Artistic Director, Ballet Master and General Répétiteur of the National Ballet of China, Xu Gang joined the company since his graduation from Beijing Dance Academy in 1987. He danced nearly all the leading roles of the company repertoire including La Fille Mal Gardée, Swan Lake, Don Quixote, Romeo and Juliet, Giselle, Le Corsaire, La Sylphide, The Red Detachment of Women, Little Blue Flower, Spirit of Dazu Grotos, and The Sleeping Beauty. He also danced many dance pieces like Act IV of LinDaiyu, Act III of La Bayadère, Variations for Four, Preludes, Serenade, The meand Variation, Concerto, etc.

In 1985, He won the silver prize of Johnson Fund at Prix de Lausanne. In 1998, he choreographed pas de deux Memory with Li Yan, and got the Special Jury Award in the first 'Lotus Cup' Dance Competition.

In 1994, He was invited as a guest artist to Japan. In 1996, he went to Hong Kong Ballet and danced the leading role in Swan Lake. He also visited many countries and areas with the company including U.S.A, Japan, Russia, France, Australia,Denmark, Israel, Turkey, U.K., Netherlands, Brazil, South Korea, Italy,Germany, Spain, Portugal, Indonesia, Singapore, the Philippines, Canada, and Taiwan, Hong Kong, Macao, etc.

In 2002, he had his further study in Laban Center in London. In 2003, he worked with the choreography group to stage the new version of Swan Lake for the company. In the same year, he choreographed and danced in The Soldier's Story Chinese premiere in collaboration with Jiang Kun and Yu Long. With ballet works like Deep Love for Yimeng, The Maiden Wash Clothes at Riverside, Red Lotus and White Lotus,and Breeze, Xu Gang participated in the Spring Festival Gala of the China Federation of Literary and Art Circles in 2010, 2011, 2013 and 2014.

Xu Gang created a three-chapter ballet named "Love of Yimeng", which was successfully premiered at Beijing tianqiao theater in May 2017 and subsequently toured all over China for more than 50 performances. He also choreographed for Feng Xiaogang's movie Youth.

As a répétiteur and later ballet master Xu Gangcooperated with Roland Petit, Natalia Makarova, John Neumeier, Ben Stevenson,Frank Anderson, Manuel Legris, Patrick de Bana, Wang Xinpeng, Fei Bo, etc. and presented their ballet works including Carmen, Pink Floyd Ballet, Romeo and Juliet, Onegin, Beethoven Symphony NO.7, The Little Mermaid, Don Quixote, Raise the Red Lantern, The Peony Pavilion, La Bayadère, Song of the Earth etc.For over 10 years, he hosted hundreds of performances 'Journey into the Worldof Ballet' to more than 100,000 audiences in universities nationwide. He also gave ballet lectures in art seminars and forums held by National Center for the Performing Arts. He made great efforts on the popularity of ballet viatelevision, radio programs, newspaper and other publications.

Xu Gang became Ballet Master of the National Ballet of China since 2005. Since 2012, Xu Gang worked as the general répétiteur of NBC. He was appointed the Assistant Artistic Director in July 2017. In January 2014, he was invited as the judge of the 47th Prix de Lausanne.