Background: The widespread use of social media has offered brands a great opportunity to engage with their customers and promote sales. In China’s mobile gaming market, the huge user base of social media marketing provides companies with an excellent opportunity to develop their brand image and cultivate further awareness. However, the research regarding social media marketing’s influence on mobile game’s brand equity is still limited from a literary perspective. Purpose: Firstly, the research aims to identify the factors of social media marketing that influencing mobile game companies’ brand equity. Secondly, this research will evaluate the importance of identified impact factors. Method: In order to investigate the research subjects and answer research question properly, the positivism research paradigm has been implemented in this research. In addition, the deductive reasoning approach is applied to formulate and test hypotheses to generate reliable results with a high level of generalization and prediction. The theoretical foundation of this research has been formulated through the frame of reference. Then, the quantitative research methods were applied to the collection and analysis of the data. The primary data has been collected through a survey and the samples have been randomly selected. The main method for the data analysis was regression analysis. Conclusion: In general, the research has demonstrated that social media marketing is a useful tool to develop brand equity for mobile game companies in the Chinese consumer market. Brand popularity and information quality are considered the most important influential factors of social media marketing on mobile game company’s brand equity in China.