This article was aimed to research the processing methods of Mongolian Meng-Gen-Wu-Su. Ancient and modern literatures which are related to the processing methods of Meng-Gen-Wu-Su were reviewed, summa-rized and sorted . The results showed that the traditional Mongolian Me ng-G e n-W u-Su processing method began in the eighteenth century in the book of Bi Y ong Y ao Ji Zhu Pin . The processing methods of all previous dynas-ties can be classified into three steps, which are descaling, detoxicating and specific drug processing. The pro-cessing methods contain soft, heat, cold, even, obvious, fierce, slow, white, black, speed and hard method. Among these 11 kinds of processing methods from all previous dynasties, some of them use the same processing name but the processing method are different; and some of them use different processing name but the processing methods are the same. Hence, there are 7 kinds of processing methods according to the processing content. Among them, the sulfur processing of Me ng-G e n-W u-Su is widely applied . This processing method is still used today and it can be divided into two kinds, which are the heat process and cold process. This method was originated from the fierce processing and even processing method in the book of Gan Lu Si Bu. And steps of descaling and detoxicat-ing in the processing are ignored. Other processing methods have rarely been used or not used at all. It was con-cluded that the sulfur processing method of Mongolian Me ng-G e n-W u-Su is still used until now .

Meng-Gen-Wu-Su (mercury)-18-composition pill was firstly recorded in the book of Gan-Lu-Si-Bu with the name of Jin-18 pill . The name of Me ng-G e n-W u-Su ( mercury )-18-composition pill was firstly recorded in the book of Me ng-Y i-Jin-G ui . Its composition and dosage had always been adjusted in the later dynasties . Until the issue of the book Ne i-Me ng G u-Me ng Che ng-Y ao Biao-Zhun , the composition and dosage of Meng-Gen-Wu-Su was promulgated. In different periods, the Meng-Gen-Wu-Su consisted of 17, 18 or 19 kinds of herbs. There are at least five different types of herbs appeared in the Meng-Gen-Wu-Su-18-composition pill. But 16 kinds of medicinals such as mercury, He-Zi, Cao-Wu, Liu-Huang, Qing-Ma-Zi, Jue-Ming-Zi, Bai-Yun-Xiang, Mu-Xiang, Shi-Chang-Pu, Su-Ge-Mu-Le, Shi-Gao, Rou-Dou-Kou, Ding-Xiang, Cao-Guo, Hong-Hua, Hei-Yun-Xiang are fixed in the composition. The proportion of Meng-Gen-Wu-Su-18-composition pill is inconsistent in different periods. The significant difference of drug dosage proportion are Liu-Huang and Bai-Yun-Xiang, followed by Qing-Ma-Zi, Jue-Ming-Zi, Cao-Guo, Wen-Guan-Mu. The Meng-Gen-Wu-Su-18-composition pill and Jin-18 pill from the book of Gan-Lu-Si-Bu are same prescription with the same composition but different names. The composition and dosage proportion of Meng-Gen-Wu-Su-18-composition pill from the book of Meng-Yi-Jin-Gui and He-Li-Le Jing-Zhu Jie-Y i Nan-Jing are the same with the same prescription name .