He made his acting debut in 2014, since then, he appeared in number of historical television series as child and young actor.
He is known for his roles in Warriors of the Dawn (2017), River Where the Moon Rises (2021), Lovers of the Red Sky (2021)[2] and Show Window: The Queen's House (2021–22).
[3] Park Sang-hoon made his debut in the film Cat in 2014 and later appeared as child actor in various historical dramas.
In 2021 he played childhood counterparts of Grand Prince Juhyang in SBS historical-fantasy drama Lovers of the Red Sky, Prince Go-won in KBS historical TV series River Where the Moon Rises, Jeong Jin-soo in Netflix dark fantasy Hellbound and Baek Soo-hyeon in tvN mystery thriller drama The Road: The Tragedy of One.
He also played a supporting role in Channel A's mystery drama Show Window: The Queen's House.