Wu Sicong graduated from the Ballet Major of Affiliated Secondary School of Beijing Dance Academy in 2013 and entered the National Ballet of China in the same year.

During school, he danced as the leading actor in Etudes. After entering the Company, he danced the leading roles in Chinese and foreign repertoires of the Company like La Bayadère, Songs and Dances of the Earth and Cinderella, Chinese New Year (The Nutcracker Chinese Version), Jewels, Giselle, and Don Quixote. And he also danced the major roles in Swan Lake, Romeo and Juliet, The Little Mermaid, The Crane Calling, The Light of Heart, The Peony Pavilion, La Chauve-Souris, Like Flowers, Inspiration and Glory, A Dream of Red Mansions and In the Chrysanthemum Garden. He also danced in The Red Detachment of Women, Raise the Red Lantern, The Yellow River and many other Chinese ballets.

He won the Modern Dance Performing Award in 4th International Ballet Invitational Competition held by Beijing Dance Academy; the Gold Medal (Junior Division) in the 10th National Dance Competition (Taoli Cup) and the Gold Medal (Males Division A) in the 2nd Beijing International Ballet and Choreography Competition. In 2018, Wu Sicong won the Gold Medal of Senior Division in the 11th American International Ballet Competition.

Wu Sicong was invited to the performance of Love South Korea and the Cuba International Ballet Art Festival in 2014. On behalf of the Company, he went to Hamburg to participate in the Nijinsky Gala in July, 2015. In January, 2016, he was invited to performed in the Charity Gala Show in Hagen, Germany. In 2017, he also danced in the performance for the 17th Council of Heads of the Member States of Shanghai Cooperation Organization in Kazakhstan, and Evening Performance of the 67th Anniversary of the Establishment of Diplomatic Relations between China and Vietnam and Malta Exchange Performance. In September, 2018, Wu Sicong participated in the Gala Show for the Forum on China-Africa Cooperation Beijing Summit. In 2019, he was once again invited to Hamburg to participate in the Nijinsky Gala and was invited as a guest at the opening ceremony of the 5th Beijing International Ballet and Choreography Competition in the same year.