[Purpose/significance] This paper aims to explore the influencing factors of new media information quality,improve the development status, strengthen the management capability, and finally provide references for information quality management. [Method/process] Based on grounded theory, the paper collects 248 pieces of materials related to new media information quality. By open coding,axial coding and selective coding, the paper finally gets a story line of the new media information quality.[Result/conclusion]New media information quality is closely related to environment factor, management factor, information literacy and guiding factor. Environment factor has an indirect effect on information quality through management factor and information literacy. Management factor and information literacy have a direct effect on information quality. Also, guiding factor can work on the degree of influences among the three different influencing factors above. The improvement of new media information quality depends on the establishment and improvement of information quality management mechanism and information quality guidance mechanism.