Before debuting with UNIQ, Wenhan had appeared on television in a diving reality show which aired nationwide on JSTV in April 2013.

From June to September 2016, he was one of the main MCs for a Chinese sports variety program called 《星球者联盟》("The Players"), which was a reality program featuring a group of Chinese celebrity contestants who face off in various basketball-related challenges against rival teams including guest stars such as Kim Jong-kook and Kobe Bryant.

[6] In October 2016, he was confirmed as cast in the historical drama set in the Tang dynasty era, 《熱血書院》("My Naughty Classmates") playing the prince Li Jingyu.

"[9][10][11] His character is Pei Chenhao, who is a basketball player for Huayang University team and the female lead's younger brother.

On 16 April 2018 Wenhan attended the opening ceremony for his new campus ping pong drama,《追球》(Chasing the Ball) in Shenzhen, China.

[13] On 5 December 2018 Wenhan announced on his personal Weibo account that he will be participating in Chinese reality boy band survival show Youth With You aired on iQiyi.

[17] On 20 April 2020, it was announced that Li Wenhan is the Spokesperson for the popular ice cream brand 巧乐兹 via their official Weibo account.

[19][20] On 13 July 2020 Li Wenhan was confirmed to be in Dragon TV variety show, 《完美的夏天》("Perfect Summer"), which is set to air every Saturday starting 1 August.

On January 16, 2022, Li Wenhan attended the Press Conference for the Hangzhou Asian Games Organising Committee (HAGOC) authorized TV series "Upstream"《泳往直前》about swimming.