In 1999, Xin Kai applied to Shandong TV Station and served as the host of the music programs "Music Style" and "Music Thousand Thousand Knots" on Shandong TV Variety Channel.

On December 31, 2005, the program "Music Thousand Thousand Knots", which he had hosted for six and a half years, was suspended after the last episode.

In 2006, he served as the host of the civilian talent show "Variety Show Stars" on Shandong TV Variety Channel; in the same year, he served as a judge for the East China finals of the "Miss Asia Campaign".

In 2007, he served as the host of the "Miss Asia Pageant" mainland finals; in the same year, he served as the host of the leisure entertainment program "Party" on Shandong TV Variety Channel.

In 2008, he won the first Shandong Radio and Television "Top Ten" announcer and program host.

In 2010, he served as the host of the entertainment talk show "Six Points of Difference" on Shandong TV Film and Television Channel.

In 2011, he served as the host of Shandong TV Film and Television Channel's talent show "Challenge the King of Movies"; in July of the same year, he served as the host of Shandong Radio and Television's "Jiangshan Ruhua" singing show; in the same year, he served as the host of Shandong Satellite TV In the same year, he served as the host of the interview program "Celebrity Face to Face" of Shandong TV Film and Television Channel.

In 2012, he served as the host of the Shandong TV Film and Television Channel interactive live program "Drama Talk"; in the same year, he served as the host of Enlight Media's entertainment information program "Entertainment Live"; in the same year, he served as the host of Enlight Media's celebrity interviews The host of the program "Xin Kai Talks"; in December of the same year, he served as the host of the "3rd China Film Development Forum".

In April 2013, he was shortlisted for the top ten hosts of the "Peony Award"; in July of the same year, he partnered with Liu Shuang to host the premiere of Shandong Satellite TV's "Jing Zhong Yue Fei"; in the same year, he served as the public welfare inspirational speaker for Shandong TV Life Channel A judge of the special program "Let Dreams Fly - Invincible Youth"; in the same year, he starred in the comedy movie "U Disk" starring Xiao Yuyu, Yang Long and Tang Aiguo, and played an auctioneer in the film. This was his first film work.

In 2014, he served as the host of the music competition program "Rhythm Master" on Shandong TV Variety Channel; in the same year, he served as the host of the outdoor adventure program "Happy Forward" on Shandong TV Variety Channel; in the same year, he and Wang Lei, Tong Liya, and Yuan Hong co-starred in the rural emotional drama "The Ordinary World", in which he played the role of Liu Genmin, the classmate of the male protagonist Sun Shaoan. This was his first TV series work; in the same year, he served as the director of the Tudou Video interactive live music reality show "Tudou Most Live" "Host"; in the same year, he served as a judge for Shandong TV Variety Channel's "Spring Festival Gala"; in the same year, he co-starred with Wu Jian, Du Zhiguo, and Tian Luhan in the Anti-Japanese War suspense drama "Seven Days to Die", in which he played the role of Japanese officer Hiroyuki Yoshino.

In February 2015, he co-hosted Shandong Satellite TV's "Year of the Sheep Spring Festival Gala" with Wang Li, Dong Shu and Yang Tongshu; in the same year, he served as the host of the Shandong TV Film and Television Channel's investment and entrepreneurship program "Win in the Dream" In the same year, he served as a judge of Shandong TV Variety Channel's "Star Competition"; in the same year, he served as the host of Shandong TV Film and Television Channel's singing talent show "King of Famous Karaoke Singers"; on October 18 of the same year, he participated in the "Joy China," This Young!" The closing ceremony of the 2nd Shandong Radio and Television Arts Festival.

In January 2016, he participated in the recording of the special program "Xin Kai: The Development of the "Eternal Male God"" of the inspirational interview program "Youth Power" on the Shandong TV Public *** Channel; in the same year, he served as the Shandong A judge of the TV lifestyle channel "Let Dreams Fly Sing to the End"; in February of the same year, he served as the host of the 10th Global Chinese Online Spring Festival Gala of "Let Love @ Home"; in the same year, he served as a judge with Luo Xiang, Zhao Xu, and Xing Wenbo Co-starring in the romantic comedy online movie "Youth Star Anchor: My Goddess".