The extraction of remote sensing geology lineament and the space layout semantic analysis provide a rich and accurate remote sensing geological information for the field of volcano detection, earthquake geology, metal deposits, oil-gas exploration and other fields, useful for further improving of the structure of the Earth , the Moon, Mars and other planets in the remote sensing multi-scale study, and for finding structural abnormali-ties.First, the extraction method of remote sensing geology lineament is analyzed and summarized .Then, the feasibility of geological lineament space structure unit analysis about the current remote sensing research is pro-posed by popular object-oriented image analysis method . Experimental results of lineament image analysis of different types are used to illustrate the applicability disadvantages of that method.