Abstract: In the middle and late 1990s to the early 21st century,lithopone manufacturers chose low grade zinc suboxide instead of zinc concentrate as raw material,due to the increasingly rising price of zinc concentrate.The (post treatment) process flow,product quality,technical conditions,and treatment measures against technical problems of Guangxi Wuzhou Yuanjiang Lithopone Company using zinc bearing waste (zinc suboxide) from flue dust of steel plant to produce lithopone by wet method were introduced.Practice results showed that the technology is feasible and its proudcts are good in quality;the unit can also produce other grade lithopone series products at the same time;and this technology can also save zinc ore resources.