Roy’ adaptation model helps to adapt healthy behaviors in diseases which are impossible to cure. According to this model, care should be aimed in enhancing adaptive capabilities and increasing the coping response of individuals to deal with stressor. Roy’s adaptation model is widely used due to its simplicity and accessibility for improving quality of life. Roy ‘adaptation model is important to promote individuals’ adaptation in changing health care demands, thus improving adjustment, quality of life and dying with dignity Roy’ adaptation model based care plan is a non-invasive non medicated and cost efficient way to limit physical and psychological issues of patients with chronic diseases. Purpose of this paper is to evaluate different articles which used Roy adaptation model for care of chronic illnesses. Nine different studies are included in this paper to evaluate the efficacy of Roy adaptation model.