The contents of K, Na, Ca and Mg in three Yingpingwanbixiao and one Yingpingwanbitong were determined by FAAS. The results showed that the contents of K, Na, Ca and Mg in Yingpingwanbixiao and Yingpingwanbitong were all abundant. This paper provided useful data for the relationship between the therapeutic efficacy and the contents of magnificence elements in Yingpingwanbixiao and Yingpingwanbitong.