Barite is an important barium-containing mineral. It is widely used in petroleum, chemical, paint, filler and other industrial sectors because of its high density, low hardness, stable chemical properties, non-toxicity, and absorption of radioactive rays. Among them, 80~90% are used as mud weighting agent and paint in oil drilling, and it is an important strategic non-metallic mineral. At present, the proportion of barite commercial grade bonanza grades higher than 90% has declined, and the grade of BaSO4 in most deposits is 50% to 90%. However, with the expansion of its application fields and the accelerated consumption of resources, the high-grade barite ore that is easy to select has been gradually reduced, and it often coexists with various types of minerals, which can only be used after beneficiation process.