To analyze the evidence of researches carried out on humanization in urgent and emergency care, considering their contributions to nursing care. Integrative review of LILACS, CINAHL, SciELO, Web of Science, SCOPUS, and BDENF databases, using the keywords: humanization of care, urgencies, emergencies, emergency medical services, and nursing. The search resulted in a total of 133 publications, of which 17 were included in the scope of this review. The analysis enabled the elaboration of the evidence units: 'Reception with Risk Classification: a device with good results' and 'Barriers and difficulties to use the guidelines of the National Humanization Policy'. The Reception with Risk Classification was evidenced as the main device for the effective implementation of the National Humanization Policy and there are barriers to its effectiveness related to the organization of health care networks, structural problems, and multi-professional work.