The current status of production technology of insoluble sulfur (IS) is introduced. The continuous process by using solvent possesses the advantages such as low cost， good thermal stability of the product and less
environmental pressure， but it requires a higher level of automation and process control. Most domestic companies use batch process with solvent， high temperature process or melt process with water. The future trend is to develop the IS with higher thermal stability， higher dispersibility and higher insoluble sulfur content.
