Purpose: The purpose of this study is to analyze the effect of attributes of online influencers on customers royalty mediated brand image and impulse buying. Research design, data and methodology: To conduct this study, a survey of 521 online user who experienced online shopping. Results: The empirical analysis results are as follows. First, among the influencer attributes, attractiveness, reliability, and expertise all had a significant positive effect on the brand image. Second, among the influencer attributes, only attractiveness had a significant positive influence on Purchase Intention. Third, the brand image had a significant positive influence on Purchase Intention. Fourth, while the influencer attributes did not have a significant influence on customer loyalty, brand image and Purchase Intention a significant positive influence on it. Conclusions: Among the influencer attributes, attractiveness and reliability had a significant positive mediating effect on customer loyalty through brand image, but the influencer attribute had no significant mediating effect through Purchase Intention. The influencer attribute had a significant positive mediating effect through brand image and Purchase Intention.