Based on the literature of marketing channel behaviors and taking the relationship between manufacturers and distributors as the research context，this paper introduces social media interaction to the channel power research framework and investigates its moderating effects on the relationship between channel power exercising and channel conflict. By analyzing the data collected from 544 respondents, the empirical research findings show that social media interaction strengthens the positive effect of coercive power exercising on channel conflict, and social media interaction also strengthens the negative effect of non-coercive power exercising on channel conflict.