He graduated from Shanghai Theatre Academy, majoring in acting.
Sun made his acting debut in the 2007 television series Embroiderer Lan Xin.
In 2009, Sun rose to fame for his role in the sitcom iPartment, which enjoyed explosive popularity in China and spanned several seasons.
[5] In 2017, Sun starred in the historical romance drama General and I, which had high ratings in China.
[7] On September 9, 2009, Sun married his university classmate Cao Xiaowen (曹晓雯).