Abstract: Dust generated by industrial production is the most severe occupational hazard in China, which affects numerous exposed populations. Because of varied properties and concentrations, dust in production not only causes a large number of pneumoconiosis patients, but also becomes potential safety hazards. Especially, the explosion of combustible dust can cause devastating damages to enterprises, as well as huge death tolls or injuries and economic losses. This article , in view of a recent combustible dust explosion, described the characteristics of combustible dust in production and relevant preventive and controlling measures.