This paper deals with eight questions about remote sensing technique used at geologycal work. They are how to understand the function of remote sensing that used at geological work,remote sensing image interpretation and ioformation extraction, the circular structure, the image variation, the interpretation extent of geological they, the image anomaly, the perspective information and the image models of remote sensing geology. Basides, this paper preliminary analysis the studying present condition and direction about aforesaid and provides the autoer's preliminary apinion.