In 1990, he entered the China Conservatory of Music and studied under Professor Jin Tielin.
In 1991, he became a soloist in the Song and Dance Troupe of the Political Department of the Second Artillery Force.
In 1992, 1994, and 1996, he won the "National Audience's Favorite Singer" for three consecutive years.
From 1998 to 2001, he studied in the "China Outstanding Young Actors Ethnic Vocal Graduate Students" class at the China Conservatory of Music.
In May 2006, the Minister of Health issued a certificate in person, and Li Danyang was officially appointed as a voluntary AIDS prevention propaganda person. Every year, she and AIDS publicity ambassador Pu Cunxin go to the "Green Harbor Red Ribbon Primary School" in Linfen, Shanxi, and bring gifts to accompany the children to celebrate Children's Day. In the same year, he won the nomination award for "Top Ten Filial Sons in China's Academic and Art Circles".
In 2008, immediately after the 5.12 Wenchuan earthquake, Li Danyang co-wrote and recorded a song "True Love in the World" with lyricist Qu Yuan and composer Wen Zi***, and also recorded Sichuan Earthquake relief songs "I'm by Your Side", "Our Hearts Are Together", "At This Moment", "Baby", "Grateful", "Can't Let You Go". In March, he was elected as a representative of the 11th National People's Congress.
On April 26, 2008, he was awarded the title of Goodwill Ambassador of Chinese Mother’s Day. At the same time, he recorded songs reflecting the Olympics such as "New Starting Point" and "In the East", and was elected as the torch bearer for the Sichuan Station of the 29th Olympic Games.
On February 6, 2009, he won the 3rd China Performing Arts Top Ten Filial Son Award. In the same year, he was elected as a representative of the 11th National People's Congress.
On the occasion of the 82nd anniversary of the founding of the Army and the 60th anniversary of the founding of the People's Republic of China in 2009, the "Military Song" - Li Danyang Military Camp Concert was held in Qinghai on July 23. In the same year, he won the title of "Red Ribbon Primary School Honorary Teacher".
In October 2009, in order to commemorate the 60th anniversary of the founding of New China, the album "Loyal Heart Xiangyang" was recorded. On the morning of October 1, as a representative of the National People's Congress, he watched the grand military parade at the Tiananmen viewing platform.
On April 22, 2010, he participated in the annual Green Focus Person Awards and won the Green Focus Person Charity Award.
From March 4 to 15, 2010, he participated in the two sessions as a representative of the 11th National People's Congress. On April 20, he participated in the live broadcast of CCTV's "Love in Yushu, Love Without Borders" large-scale disaster relief party.
On April 24, 2010, as an AIDS prevention publicity ambassador, he participated in the filming of the AIDS prevention-themed movie "The Favorite". On July 8th, he participated in the shutdown ceremony of the movie "The Favorite".
On August 26, 2010, he was hired as the deputy secretary-general of the Chongqing Youth Federation Beijing Office. On August 28, he participated in the performance of the Second Artillery Group to commemorate the 65th anniversary of the victory of the Anti-Japanese War. On November 22, he went to Jincheng College of Sichuan University as an AIDS prevention publicity ambassador to promote AIDS prevention and the AIDS prevention documentary "Together". In November, he was elected as the artistic director of the Second Artillery Song and Dance Ensemble. On November 22, he went to Jincheng College of Sichuan University as an AIDS prevention publicity ambassador to promote AIDS prevention and the AIDS prevention documentary "Together".
Participated in the two sessions in early March 2011. In the same month, he attended the press conference for director Gu Changwei's new film "The Favorite". On May 5th, he will attend the world premiere of the movie "The Favorite" and on May 6th, he will promote the movie "The Favorite" in Chengdu.
On September 17, 2011, a solo concert of "Loyal Heart Xiangyang" was held at the Great Hall of the People.
Participated in the two sessions on March 5, 2012.
On June 25, 2012, he attended the graduation party of Beijing Sport University and was hired as the art consultant of the Art Troupe of Beijing Sport University. On July 26, he participated in the launching ceremony of the 2012 "Golden Leaf Charity Medical Card" medical assistance project and the charity evening party for fundraising. On August 5, the MVs "Happy China" and "Get Better" were filmed as tributes to the 18th National Congress of the Communist Party of China. The next day, I participated in the Aerospace God-9 performance.
Won the title of Green China Charity Ambassador on September 24, 2012. On December 3rd, he participated in the special art evening performance held at the 8th Party Congress of the Second Artillery Group.
From February 12 to 27, 2013, he went to Sao Paulo, Rio, and Buenos Aires with the Overseas Chinese Affairs Office of the State Council and the China Overseas Exchange Association's "Cultural China·Spring Around the World" art troupe. Performed to express condolences to overseas Chinese in , San Diego, Lima and other places.
On March 15, 2013, he served as a judge for the Henan Division of the 15th National Young Singer Television Grand Prix.
On April 28, 2013, he participated in the live broadcast of "China Love. 420 Lushan Strong Earthquake Large-scale Public Welfare Special Program".
On May 5, 2013, he served as a judge of the 15th National Young Singer TV Grand Prix.
In May 2013, he supported the 30th International AIDS Candlelight Remembrance Day, joined the Star Volunteer Group, and was awarded the title of "Chinese Red Ribbon Charity Star". In May, he was elected as a director of the first board of directors of the Chinese Literary and Art Volunteers Association. On the 19th, he participated in the "Lighting with Heart and Delivering with Love - 2013 International AIDS Candlelight Remembrance Day" event.
On June 17, 2013, he served as a judge for the ethnic group of the China Music Golden Bell Awards. From November 22 to 26, he served as a judge for the Vocal Ethnic Group of the 9th China Music Golden Bell Awards.
On January 10, 2014, he participated in a special performance at Tuanli National Science and Technology Commendation Conference. On January 11th, he participated in CCTV7's "2013 Audience's Favorite Ultimate Hero Award Ceremony".