The invention provides a method for assisting an ionic rare earth ore in-situ leaching technology through a three-dimensional remote sensing technology. An unmanned aerial vehicle and the three-dimensional remote sensing technology thereof are adopted for measuring the ionic rare earth ore area work area ground surface, a ground surface three-dimensional remote sensing model is built, the remote sensing interpretation of the ground surface three-dimensional remote sensing model is used for obtaining geological environment information of the position, the plane extension direction, the profileextension condition and the like of the section, according to the remote sensing structure explanation result, the influence of the result on the rare earth ore in-situ leaching technology is analyzed, and the correct method is adopted for responding. For a large-scale profile in the area, commonly, distributed drilling holes need to be away from the profile, and flowing of leaching solutions is reduced; for small-scale profiles, the profile is used for gathering the leaching solution; and the remote sensing technology is adopted for assisting the ionic rare earth ore in-situ leaching production, the recycling rate of the leaching solution can be obviously improved, production cost is saved, investment risks are reduced, and the influence on the environment can be reduced to the maximum degree.