Patients with preexcitation syndrome do not have special dietary requirements, but should pay attention to strengthening follow-up, and patients with tachycardia episodes can be treated with radiofrequency ablation. Pre-excitation syndrome is due to the congenital development of conduction pathway abnormalities, there are still conduction pathways outside the normal conduction system, when the heart’s excitement is transmitted by the abnormal conduction pathway, it will be manifested as pre-excitation syndrome, and most of the patients can be lifelong asymptomatic, but a small number of patients have the risk of tachycardia, and even the possibility of sudden death. Patients with pre-excitation syndrome do not have special dietary requirements, but should pay attention to maintaining a balanced diet to avoid malnutrition, and have regular follow-up visits to the hospital. Patients with tachycardia episodes are recommended to undergo radiofrequency ablation to reduce the episodes of tachycardia. If the presence of preexcitation syndrome is found, it is recommended to consult a doctor in time to avoid delaying the condition.