Objective: to analyze the NANDA-I taxonomy “maternal-fetal dyad” concept in high-risk pregnancy. Method: an integrative literature review based on the Conceptual Analysis model proposed by Walker and Avant. It was conducted at PUBMED, CINAHL, SCOPUS, LILACS and SciELO, with the descriptors: Complications of pregnancy, Risk Factors, and Pregnancy, High-Risk (from 2008-2020). Result: the sample consisted of 44 articles, which identified two attributes and 21 antecedents of the concept. Conclusion: concept analysis allowed to identify the attributes and antecedents of the “maternal-fetal dyad” concept in high-risk pregnancy, in addition to raising and clarifying ideas. It was possible to identify 12 antecedents that are not included in NANDA-I as well as the need to review the definition of the diagnosis proposed by the taxonomy.