In March 2010, Zheng Shuyin won the women's 68 kg championship at the World Taekwondo Youth Championships in
Mexico. In August, Zheng Shuyin represented the Chinese team in the first
Youth Olympic Games. She made it all the way and defeated Mexico's Acosta 2:1 in the final to win the women's 63 kg championship. In October 2011, in the women's 73 kg final of the Seventh City Games, Zheng Shuyin had a bad start and fell behind Xu Hui of the Hefei team 2:4. In the last two games, she hit Xu Hui's head in the scoring area one after another, and finally won Defeated the opponent 19:8. In September 2013, Zheng Shuyin won the championship in the taekwondo women's 67 kg and above finals of the 12th
National Games, defeating Li Donghua 6:2 with a hit to the head. This was also the first time that the
Liaoning Taekwondo team won the National Games. gold medal In October, in the taekwondo women's 73 kg and above finals of the Sixth East Asian Games, Zheng Shuyin defeated Peng Jiahui and won a
gold medal. In October 2015, the Taekwondo Grand Prix was held in
Manchester. In the women's 67 kg and above finals, Zheng Shuyin defeated the host player in overtime to win the championship. In December, at the Taekwondo World Cup (Team Competition) held in Mexico City, Zheng Shuyin helped the Chinese women's team narrowly defeat the host
Mexico team in overtime in the final and win the championship in addition, Zheng Shuyin won the Women's MVP of this World Cup and won the "ticket" for the Rio Olympics. In August 2016, Zheng Shuyin competed in the women's 67 kg taekwondo competition at the Rio de Janeiro
Olympics in Brazil as the No. 2 seed. She defeated Nepal's Laval, France's Epange and the British in the top 16, top 8 and semi-finals. Walkden; in the final, Zheng Shuyin defeated Espinosa 5:1 and won her first
Olympic gold medal. In June 2017, in the semi-finals of the women's 73 kg and above World Taekwondo Championships, Zheng Shuyin unfortunately lost 3:4 and eventually tied for the
bronze medal with South Korean player Anseban. In September, in the overtime match of the women's taekwondo 67 kg final of the 13th National Games, Zheng Shuyin defeated
Gao Pan 2:0 and won the championship. On January 27, 2018, the first Taekwondo World Cup Team Championship, the women’s team final was held between the Chinese team and the South Korean team. The Chinese team, composed of
Wenren Yuntao,
Zhou Lijun,
Zhang Mengyu,
Gao Pan and Zheng Shuyin, finally won 53:17. On September 13, 2019, in the women's 67 kg and above competition at the Taekwondo World Grand Prix in
Chiba,
Japan, Zheng Shuyin defeated British player
Bianca Walkden and won the championship, while gaining 40 Olympic points. Zheng Shuyin has secured a ticket to the Tokyo Olympics. On December 7, in the women's 67 kg and above finals of the World Taekwondo Grand Prix held in
Moscow,
Russia, Zheng Shuyin defeated Serbian player Mandic and won the championship. On December 20, the World Taekwondo Grand Slam Championship Series concluded in
Wuxi. Zheng Shuyin won the bronze medal in the women's 67 kg and above category. On July 27, 2021, in the quarter-finals of the women's taekwondo over 67 kg category at the
Tokyo Olympics, Zheng Shuyin lost to French player Laurine at 6:14. == Personal life ==