Abstract: Aiming at the difficulty of material level measurement in cement plant under high dust condition, the parabolic antenna radar material level meter and the measurement software of continuous measurement algorithm with missing wave are adopted, which meet the requirements of material level measurement under the conditions of heavy adhesion of materials, strong dust interference and uneven material surface. For some silos that focus on preventing the occurrence of "warehouse-breaking" accidents, an extended anti-rotation switch high-position alarm device can be installed.