Objective: To explore the fear of recurrence and the belief in prevention of recurrence in elderly patients with coronary heart disease. Methods: A total of 178 elderly patients with coronary heart disease were included, and quantitative and qualitative research methods were used to explore the fear of recurrence and the belief in prevention of recurrence in elderly patients with coronary heart disease. The quantitative research tool was a self-made fear of coronary heart disease recurrence questionnaire; the qualitative research was guided by the phenomenological method, semi-structured in-depth interviews with 11 elderly patients with coronary heart disease, and the data were collected by recording, and the Colaizzi method was used to analyze the data. Results Elderly patients with coronary heart disease were afraid of recurrence; they knew the etiology of coronary heart disease, but the controllable rate of the cause and effect was extremely low. Conclusion: Due to the belief in fatalism and the lack of control over the etiology of coronary heart disease, elderly patients with coronary heart disease are afraid of recurrence.