Background: The elderly population is a vulnerable group, it is the nurse's responsibility to promote health and meet the nursing needs that arise. Health-related benefits for animal owners have been known since the ninth century and today animal-assisted interventions (AAI) are an accepted concept in health care. Aim: The aim is to describe the effect AAI hason the elderly in elderly care. Method: This is a general literature review. A thematic analysis has been used to compile the results from previous research. 14 articles from the databases CINAHL, Pubmed and Medline were selected for the result. 3 themes and 8 subthemes were identified: Quality of life with subthemes "Quality of life according to QUALID", "Socialinteraction", "Well-being" and "Sense of coherence", Symptom relief with subthemes "Mentalillness" and "Cognitive ability" and Physical health with subthemes "Physical activity” and “Appetite”. Results: AAI results in increased social interactions, reduction of depression, increased appetite and physical activity, improved cognition, increased well-being, sense of coherence and an improved quality of life (QoL). Conclusions: AAI can improve the health and QoL of the elderly in elderly care, especially for those with dementia. AAI can potentially reduce the use of drugs among the elderly. Further research in the field is needed to strengthen results found in several of the articles and to map the duration of the effects.