Fully mechanized mining face of Jiangzhuang Mine was taken as the example, from the perspective of improving comprehensive mining working face dust fall, using rapid water injection technology, enclosed dust control technology, chemical technology and equipment of dust suppression to reduce comprehensive mining working face dust, the result showed that fully mechanized mining face dust control got good effect, the average dust fall of whole dust and breathing dust achieved by 81.7% and 78.7%, the dust fall of whole dust and breathing dust in driving area achieved by 95.4% and 94%. The data showed that the application of comprehensive mining dust prevention technology greatly improved the production environment mining face underground, which played a positive role for effective and safe mine production.