Abstract: Neo-Mohism was named by Hu Shih to refer to the distinct branch of scientific and logical Mohism School after the death of Moh Tih.Hu Shih's study can be divided in three parts: first of all,he reassessed the value of the sixth book of Moh Tih Texts.Second,he summarized the deductive forms of them.Third,he studied the logical thought of Hui Sze and Kung-sun Lung.Hu Shih's study distinguished the special characters of Neo-Mohist logic,which means self-conscious in the study of Chinese logic.Meanwhile Hu Shih was also sharply criticized for regarding Hui Sze and Kung-sun Lung as the legitimate representatives of the school of Moh Tih.