Mammographic breast cancer screening is a fact in developed countries. Nursing acts in different ways in this process, having an important role in the barriers related to non-adherence to screening, but its effectiveness is little proven, with limited number of clinical trials about this topic. An integrative review of the literature in PubMed and LILACS (Latin American Literature) was conducted, aiming to evaluate controlled clinical trials about nurse's role in breast cancer screening. It was used the key words breast cancer screening, clinical trials and nurse. From 110 publications in PubMed, 18 were clinical trials and showed the nurse's role in breast cancer screening. None publication was observed in LILACS database. This review shows the effectiveness of nursing in breast cancer screening, presenting new nurse's role in the multidisciplinary team that qualify actions related to women's health.