Li Zi'er, formerly known as Li Jiaxin, was born on August 2, 1987 in Harbin, Heilongjiang Province, graduated from the Central Academy of Drama, and Chinese mainland actress.
In 2002, he participated in the filming of the air politics repertory theatre's indoor sitcom "The Story of the Cooking Class", and began his acting career since then.
In 2005, he starred in the anti-war drama "Railway Guerrilla". In 2007, he starred in the military drama "Brothers under heaven". In 2008, he starred in the sitcom "The Story of the Police Station". In 2011, he starred in the anti-war drama "Fog Capital".
In 2012, he starred in the police drama "The Ultimate Arrest". In 2014, she won the Outstanding Actress Award at the Golden Begonia Award at the 2nd Asian Micro Film Festival for her micro-film "He".
In 2015, he starred in the comedy film "No Small". In June 2016, he starred in the romance film "Trio". In August, he starred in the bandit drama "The Brave Wins". In 2017, he starred in the revolutionary historical drama "The Great Cause of Building the Army".