This paper analyzes the molybdenum consumption structure and history in the world, uses a combined methods of average molybdenum consumption quantity per capita, "S-shaped" regularity of mineral resource consumption and scenario forecast to tell China's future molybdenum demand tendency. China currently is at the stage of rising demand, estimated up to 140 kt in 2025. By then the ratio of molybdenum to steel will reach about 0.02%, a little bit higher than the global. This paper quantitatively forecasts China's molybdenum demand in middle to long term, of significance in promoting molybdenum's application, developing molybdenum resource, industrial development and planning.