Surgery or surgery is all treatment that uses invasive methods by opening or showing the part of the body to be treated.Mental preparation is very important in the process of operative preparation because the patient's mentally unprepared orunstable can affect his physical condition. Surgery is a potential or actual threat to a person's integrity that can generatepsychological and physiological stress reactions. Anxiety is the most dominant psychological condition that occurs inpatients. Anxiety can increase feelings of pain, interfere with sleeping ability, cause nausea and vomiting, and interfere withtheir quality of life, and severe anxiety can even shorten a patient's life. Prayer is a humble request to Allah for goodness andbenefit that is on His side. Praying is worship, it is even the essence of worship. This type of research is descriptiveresearch. Data sources were obtained from MEDLINE, Google scholar, PubMed and Google. The literature search wasstarted from the last 10 years of publication. Journals with cross sectional, before after study and observational studymethods were included in this literature study. The results showed that there was a relationship between the level ofpreoperative anxiety in patients who were taught prayer before and after undergoing anesthesia and elective surgery. Fromseveral studies that have been done, it is found that there is a difference in the level of preoperative anxiety in patients whoare taught prayer before and after undergoing anesthesia and elective surgery. Research mostly uses the one group pretestposttestdesign approach.