Abstract: Black liquor from pulp-making is one of the main pollution source in China. In this paper, discussions about black liquor gasification in the world are mainly focused on technology and main equipment used in the gasification system and industrial applications. The newest development in this field is introduced. The investigation results from the literatures showed that black liquor gasification technology was a potential and useful method not only to reduce pollution but also to provide enough energy for pulp-making mill itself, which will change vastly the high-pollution and high energy consumptions status of pulp-making plants.