Abstract: The Songshugang tantalum-niobium deposit is a newly proved oversize rare metal deposit, which holds the largest resources of tantalum-niobium in Asia. A lot of analysis and testing are carried out to research the chemical composition, mineral composition, dissemination characteristics, magnetic analysis and occurrence of the albitized granitie type tantalum-niobium ore in Songshugang mining area. The detailed technological mineralogical characteristics research has provided theoretical information for the mineral processing technology and development of Songshugang tantalum-niobium ore and the same type tantalum-niobium ore.