Abstract: This paper briefly sets out the type and ore-genetic typomorphic characteristics of the super micrograined impregnation-type gold deposits in Northwestern Guangxi,which consist of the way and times of the hydrothermal activity and alteration,the shape and occurrence and thickness of orebody and the gold tenor change of ore,petrology and fabric and mineral constitution and chemical composition of ore, and the gold exitence etc. At the same time, it also introduces the prospecting typomorphic characteristics,which are regarded as basise of seeking and apprasing the gold deposits, such as silification, pyritization,arsenopyritization, and carbotization——the typomorphic association of mineral,arsenopyrite——the typomorphic mineral, and various typomorphic characteristics of the quartz, pyrite, arsenopyrite, andstibnite.