With the new curriculum plan and its implementation, the computer technology has been applied in all areas of education, geography teaching also cites Google Earth this is a simple and popular software to assist teaching. This software has been largely overcome many of the problems in GIS technology. Google Earth can be complex geographical knowledge displayed directly, for geographical teaching have brought the good auxiliary effect.This article uses the literature research method, case study method, observation method and so on the Google Earth application to geography teaching in junior middle school, this paper mainly introduces the Google of Earth software and its function, and in actual teaching practice and analysis of the case, summed up the Google Earth application in geography teaching in middle school 's advantages and disadvantages, as with the aid of Google Earth to better optimize the geography teaching provides help. With the new curriculum plan and its implementation, the computer technology has been applied in all areas of education, geography teaching also cites Google Earth this is a simple and popular software to assist teaching. This software has been largely overcome many of the problems in GIS technology. Google Earth can be complex geographical knowledge displayed directly, for geographical teaching have brought the good auxiliary effect.This article uses the literature research method, case study method, observation method and so on the Google Earth application to geography teaching in junior middle school, this paper mainly introduces the Google of Earth software and its function, and in actual teaching practice and analysis of the case, summed up the Google Earth application in geography teaching in middle school 's advantages and disadvantages, as with the aid of Google Earth to better optimize the geography teaching provides help.