Cui Song plays the role of the small landlord king in Latent. Jin, the landlord, came to Tianjin with two children and made a living by baking cakes. Just because he recognized Cui Ping, a fellow villager, and shouted "That's not the Chen family girl" in the street, he died. In order to save the lives of two children, Wang picked up a machete and chased two agents who wanted to kill himself three miles away. There are not many scenes, only more than 30, but Cui Song brought this lonely protagonist to life. In Baidu's Latent Post Bar, there are nearly 200 posts discussing this role. Netizens think that the landlord played by Cui Song is different from the "Facebook landlord bully", which is refreshing.

Speaking of his acting career, Cui Songxiao said that he used to sing. When he was studying in Qingdao No.39 Middle School, he and Bo Huang practiced singing together every day. In 2005, director Jiang Wei came to Qingdao to film "Fog City", and Cui Song entered the crew to play Jia, the veteran of the criminal police team, on the recommendation of Teacher Song of Qingdao Theatre. This filming experience made Cui Song madly fall in love with acting, decided to go to Beijing for further study after graduation, and officially entered the entertainment industry. He has shot Autumn Meteor Shower, Fatal Strike, Legend of Heaven, My Wulin Boyfriend, Sweet Trouble, Master Geng's Maza, Close Contact of Mahjong, Silent Trestle and The Lancet.