The development of remote sensing opens up greatly the people’s field of view and visual capabilities. People can really analyze a whole earth as a unified system. At present, with the characteristics of macroscopic, comprehensive, multi-scale and multi-level, remote sensing technology has become an indispensable means of geological work, and play an important role in many fields, such as geological survey，mineral exploration, geological environmental evaluation, geohazards monitoring, geological research, lunar and planetary exploration, et al..With the increasing in the resolutions (spatial, spectral, temporal, radiative) of sensors ,particularly the development in hyerspectral and radar interferometry, the observation scale of remote sensing has been increased greatly, the discrimination ability and identification accuracy has been improved significantly, which makes remote sensing a qualitative leap forward from discrimination to identificatification, from macro objects detection to micro component identification, promote remote sensing geology and its application to a newly higher level. . Firstly, the newly developments of remote sensing geology , the principle, methodology and modeling of ore prospecting using remote sensing are described briefly in the paper, and then, the principles, methodologies, technologic characteristics and keys about reflectance spectral measurement of rocks and minerals, digital processing of remotely sensed images, anomaly extraction from multispectral remote sensing images, hyperspectral mineral identification and mineral mapping, remote sensing mineral prospective model, surface deformation inverstigation and monitoring with radar interferometer, geohazard monitoring with remote sensing are discussed respectively, some research achievements and application examples are presented.