Bradycardia arrhythmia, mostly developed from various basic heart diseases, mainly influences patients' quality of life and leads to severe complications. Prof. WENG Weiliang thinks that the pathogenesis of bradycardia arrhythmia is deficiency, phlegm and blood stasis. Yang (Qi) deficiency, phlegm blockade and blood stasis are the basic pathological factors. Thus warming Yang-benefiting Qi and promoting blood circulation-removing obstruction in channels are the basic treatments. Meanwhile, according to wax and wane of patients' Yin-Yang, Qi-blood, cold-heat and deficiency-excess, as well as the severity of blood stasis, excessive fluid and phlegm-turbidity, combined with seasonal climate change, different living area and characteristics of age, constitution, etc., medicine should be used based on syndrome differentiation. Thus heart rate increases and pulse recovers. In the course of treatment, rationality and safety of herbs are particularly emphasized.