The paper conceptualizes the content created by Internet celebrities as content performance and believes that content performance is affected by its content characteristics. Based on the information adoption model, this paper adds content entertainment as an influencing factor, and uses topic type as a regulatory variable. Combined with text analysis, negative binomial regression was used to analyze the data set. The findings are as follows: First, media richness, content entertainment, source expertise and source trustworthiness all significantly affect the performance of knowledge influencers, among which source expertise has the greatest impact; Second, the topic type can regulate the influence of content entertainment. Research can provide references and enlightenments for enhancing the performance of Internet celebrities and the value extraction of digital content service providers.