Objective To investigate the level of nutrition literacy among pregnant women, and to analyze its influencing factors,so as to provide a reference for developing targeted intervention. Methods A total of 531 pregnant women admitted to hospital for delivery were investigated by using the general information questionnaire, the Nutrition Literacy Assessment Instrument for Pregnancy Women (NLAI-P), the Mobile Health Information Search Behavior Questionnaire (MHISBQ), the Multi-dimensional Health Locus of Control form C (MHLC-C) and the Perceived Social Support Scale (PSSS). Results The participants′ score of NLAI-P was (44.52±9.68). The results of multiple linear regression analysis showed that, educational background, number of births, with or without pregnancy comorbidity or complications, frequency of attending maternity school, the MHISBQ score, health internal control score, health opportunity control score, and the PSSS score were factors influencing nutrition literacy of pregnant women (Adjusted R2=0.215, all P<0.05). Conclusion Nutrition literacy of pregnant women is at a medium level, it is necessary to conduct intervention according tothe influencing factors, so as to improve their nutrition literacy.