Douyin is now a popular short video app for Chinese college students. Most Chinese college students watch Douyin for entertainment. So how Douyin brings happiness to college students is worth studying. A questionnaire was made for college students to fill out to help with the study. Through data analysis of the questionnaire results, the conclusions are showed that first Chinese college students are attracted by entertaining videos on Douyin, and they like livestream function of Douyin most, which also brings them happiness. Douyin had become a form of entertainment among college students during the quarantine as well. Furthermore, fragmented video information transmission mode on Douyin makes some students think the joy they get is continuous, while others think it is transient. In addition, most students agree that Douyin is a vulgar way of entertainment, mainly due to the uneven quality of the videos on this platform. Overall, this study presented that Douyin does bring happiness to Chines college students. However, this kind of video content that brings students happiness is tacky to some extent and has no substantive meaning.