Objective:To retrieve, evaluate and integrate evidence related to cosmetic beauty in breast cancer patients with self-image disorder, so as to provide a basis for clinical practice.Methods:According to the evidence-based resource "6S" model, the guideline websites and Chinese and English databases were systematically searched from top to bottom for clinical decisions, guidelines, systematic evaluation, expert consensus and original researches on cosmetic beauty in breast cancer patients with self-image disorder. The search period was from establishment of the databases to November 2023. The included literature was evaluated by two researchers and evidence was extracted from the literature that met the quality criteria.Results:A total of nine articles were included, including one guideline, two systematic reviews, three expert consensus and three original studies. A total of 24 best pieces of evidence were formed from eight aspects, including team building and educational guidance, body image assessment and referral, basic skin care and precautions, daily makeup, hair loss care, clothing matching, prosthetic breast selection and health education.Conclusions:The best evidence summarized in this study is comprehensive and can be used by clinical medical staff in practice, but the evidence should be personalized according to patients' wishes and clinical practical problems to improve the self-image of breast cancer patients.