Purpose This study aims to explore the scope of application of digital health in pregnancy care in China, summarize the characteristics of digital health, and examine its effectiveness in improving maternal and infant health and health behaviours. Method The databases PubMed, CINAHL, PsycINFO, Cochrane library, EMBASE, and CNKI were searched using keywords “pregnant woman,” “digital health,” “obstetric care,” “China,” and their synonyms. The updated Preferred Reporting Items for Systematic Reviews and Meta-Analyses was used as the guideline. The targeted information was narratively described using figures and percentages. Result The review included 49 publications. The targeted health problems included gestational diabetes mellitus, perinatal depression, infant feeding, urinary incontinence. WeChat, health mobile apps, short message services, and phone calls were found to be the most commonly used digital platforms. Digital-based health education, doctor patient interaction, and health monitoring were shown to be the most often used intervention methods. Digital interventions showed positive effects on blood glucose control, decreasing anxiety or depression symptom, and enhance medical care compliance, but most of these examined studies have risk of bias. Conclusion The application of digital health in pregnancy care in China is limited, having only been used to target a few common health problems. Aside from the traditional communication technologies such as mobile apps, and SMS, advanced technologies like artificial intelligence and virtual devices are rarely utilized. Digital interventions have demonstrated positive effects on some maternal health outcomes. Future research should explore the use of more advanced technologies to address more health problems.