Respiratory sinus arrhythmia does not usually require treatment. Sinus arrhythmia refers to an arrhythmia caused by an abnormality in the frequency of sinus node impulse delivery or a blockage of sinus impulse conduction to the atria. Sinus arrhythmia can be divided into three categories: respiratory, non-respiratory and ventricular tense-phase sinus arrhythmia. Respiratory sinus arrhythmia is one of these categories, and respiratory sinus arrhythmia is associated with breathing, in which the heart rate is fast during inhalation and slow during exhalation, and the arrhythmia disappears during pauses in breathing, and is generally of no pathologic significance. If the results of arrhythmia tests are abnormal, it is recommended to consult a doctor in time, with the help of the doctor to clarify the cause of the disease, and to carry out targeted treatment or therapy.