"This cross-cultural comparison study between China and the US aimed to examine the short video-sharing social media platform, TikTok/Douyin, particularly its use in the two countries. Because China and the US have some evident differences in cultural values, they are ideal for cross-cultural comparison between Western and Asian countries. Other than knowing the platform itself, how people use it, and their influencer video use, the study further explored how cultural values influenced user behaviors on TikTok/Douyin. Two survey studies were conducted in each country. The questionnaire asked the same question but in two language versions Chinese and English. Questions asked about participants' demographic information, TikTok/Douyin use preference, influencer preference, and cultural values. In general, Chinese participants had a more extended time experience of using Douyin, and they spent more time on Douyin every day. Participants had a different preference for influencers' expertise on each platform. US participants favored music influencers while Chinese participants favored food influencers. Moreover, Chinese participants were more likely to be persuaded by influencers to make purchase decisions than US participants. Besides, Chinese participants claimed a higher individualism score and a lower power distance score than US participants, which contradicts with Hofstede's original cultural scores for each country." (Abstract)