Covid-19 spread around the world, which has left national economies and businesses
counting the costs. However, the influencer industry continues to expand and Instagram is to
watch for industry trends. Based on a model called advertising value, this paper used a 2*3
experimental design (influencer’s followers: high vs. low / Hashtag type: information vs.
empowerment vs. information + empowerment) to detect the effect of advertising. The results
from valid responses shows that (1) Both informativeness & credibility and interactivity are
positively related to advertising value. (2) informativeness & credibility, entertainment and
advertising value are positively related to attitude. (3) the number of influencer’s followers
positively affect advertising value. (4) Hashtag type has the main effect in informativeness &
credibility and advertising value.