In 2000, Lin Yichen participated in the first MRT Super Beautiful Girl Competition organized by Taipei Metro News and won the championship.

In 2001, he was admitted to the Korean Department of National Chengchi University in Taiwan and later participated in the filming of music videos and advertisements.

In 2002, he officially debuted as the lead actor in his first TV drama "Promise at 18".

In February 2004, her debut film on the big screen, "Crossing the Sea of Love," was released. Lin Yichen was nominated for Best Actress at the 40th Taiwan Golden Horse Film Festival and the 5th Chinese Film Media Awards for her performance in the film.

In 2006, he successfully entered the mainland market by starring in the historical mythological love drama "Flying Immortals from Outside the Sky".

In 2008, she won the Best Actress award in the Drama category at the 43rd Golden Bell Awards for her idol drama "Mischief 2 Kiss", becoming the first person in the history of idol dramas to win the Golden Bell Television award. This propelled Lin Yichen's career to new heights in the entertainment industry.

In May 2009, he signed with Avex to enter the music industry; In October, released her debut music album 'Happy Encounter'.

In June 2012, the TV drama "I May Not Love You" starring Chen Bailin was broadcasted on Hunan TV, and Lin Yichen won the Best Actress Award for Drama Program at the 47th Taiwan TV Golden Bell Awards for her performance in the drama.

In September 2013, Lin Yichen temporarily left the entertainment industry and went to study in the UK for one year.

In 2016, he made his first attempt at a large-scale film production and starred in "234 Love You".

In 2017, in addition to filming the emotional drama "The Old Boy", the romantic comedy film "Love Frozen" and the suspense thriller film "The Mysterious Family" starring him were also released one after another.

In November 2023, the film "Mysterious God on the Roof" starring Zhou Yumin and Ruan Jingtian was released in Taiwan, China, China.

In April 2024, the TV series "We Are Not Kind enough" starring Lin Yichen, Xu Weining and He Junxiang premiered in Taiwan, China, China.