Dementia is a symptom caused by memory diseases, cognitive and behavioral disorders.Various quantitative studies about the dementia interventions have been reported. However, most of the studies used single intervention which did not give a comprehensive approach for the client. The purpose of the article was to determine types of interventions that are effective to overcome dementia problems among elderly people. This review used a scoping review method. Electronic literature searching was conducted using databases: Google Scholar, Proquest, EBSCOhost, PubMed, Scopus and DOAJ, using keywords Dementia, Elderly, and Intervention. The inclusion criteria were:peer-reviewed articles, published between2007-2017, research design included quasi-experimental, experimental and Randomised Controlled Trial. Exclusion criteria were non-English papers and the sample size was fewer than 30 participants. Scoping review method were used. Results: A total of 38,100 papers were retrieved: however, 79 enter into the inclusion criteria, and further 60 papers were excluded. Thus, only 19 articles were included in the analysis. Five out of 19 articles used multi-interventions. The types of interventions were occupational therapy, physical activity, reminiscence program, diet, and cognitive therapy. Multi-intervention approach has shown more positive results compared to single intervention.However,most studies did not involve family or caregiver in the interventions. Multi-intervention studies have more potential to produce effective outcomes for treating or preventing dementia and improve quality of life than those with one intervention.Further research is requested to examine the effect of multi-intervention combined with family involvement to prevent or treat dementia among elderly in the community.