Objective: To know the development of the scientific evidence on the uncertainty towards the disease of family caregivers of patients in palliative care. Materials and methods: A descriptive scoping review. A search was conducted in the Embase, ScienceDirect, Medline, Academic Search Complete, Scopus databases, during the 2000-2019 period. The following MeSH terms were used: uncertainty, palliative care, end of life, nursing and caregiver. Fifty articles were selected after the criticism process.