Abstract: Under the background of "Internet + health" strategy, online doctor rating information is increasingly important for building online and offline trust between doctors and patients. Whether doctors’online reputation is credible or not is the common concern of doctors and patients. Based on social capital theory and social exchange theory, this paper uses regression analysis to analyze factors that influence doctors’ online reputation characteristics. Results show that the offline social capital and online participation of doctors have a significant correlation with the positive online rating information they obtain. Higher offline social capital (such as academic title, professional title, hospital level, city level, etc.) helps doctors get a higher probability of being rated and the number of comments, but some kinds of offline social capital are not significantly related to the level of rating scores. The online participation of doctors in the virtual medical community(such as online consultation and publishing popular science articles,etc.) is significantly related to the higher probability of being rated, rating scores, and the number of reviews. Online participation can also change the influence of inherent offline social capital on the doctors’ online reputation. In addition, in the case of small differences in rating scores, offline social capital and online participation have weaker explanatory power for the level of rating scores, but have higher explanatory power for the number of reviews and the probability of being rated. The research enriches social capital theory and social exchange theory, and provides practical implications for doctors, hospitals, physician rating websites and health management departments.

Key words: Online review, Social capital, Social exchange, Health information, Online reputation, Trust between doctors and patients