Abstract: Short video industry has been on the fire after the invention of an application of social software called ‘TikTok’. This application went viral starting from September 2016. TikTok was widely used by multi-level of ages and background. For some, users used TikTok for entertainment, business purpose and marketing promotion strategy. Instead, out of positive function and affect, there must be the vice versa about TikTok.  This study is about to highlight the effect of TikTok on youth in the positive and negative sides. This research method carried by having an investigation and reading on previous study to collect the specific data and to make a conclusion about the topic of study. In conclusion, TikTok application indeed giving positive and negative impact on youth depends on their aim for using TikTok.