His impromptu dance solo based on the randomly selected prompt "The Burning Flame" helped the group win the gold medal in the competition.

In 2012, Luo made his acting debut, when he was cast in the romance film The Spring of My Life opposite Tan Songyun.

[24] In 2016, Luo was cast as the protagonist in the crime suspense drama Voice of the Dead, an adaption of one of the books in the Medical Examiner Dr. Qin novel series.

[29] In 2018, Luo began filming the historical romance drama Princess Silver as a kind but distant and misunderstood prince who inherits a deadly poison from his mother before birth.

[30][31] Luo also acted in the fantasy romance drama Ashes of Love as "Runyu", the gentle and regal Night Immortal whose innocence and kindness turns to hatred and revenge when he sets out to avenge his mother's unfair death.

[32] The drama topped television ratings and online web rankings[33] and Luo's portrayal of a morally ambiguous antagonist was acclaimed by critics.

[34][35][36] The same year, he was cast in the modern romance drama Broker alongside Victoria Song as a morally ambiguous corporate spy with a hidden motive.

[39] The same year, he starred in the wuxia romance drama And The Winner Is Love as the graceful young master of the Yueshang Valley.

[43] The same year, Luo was cast in xianxia drama Till the End of the Moon as "Tantai Jin", a hostage prince who is born with an evil bone and must rebel against his destiny of becoming the havoc-wreaking Devil God.

[49] The same year, he was cast in fantasy wuxia drama Shui Long Yin as a highly skilled but introverted and even indifferent swordsman.

[53] Luo was appointed the China-Thailand Cultural Friendship Ambassador by the Tourism Authority of Thailand in October 2023 due to the popularity of Till the End of the Moon.