Abstract: The aluminum nitride in the secondary aluminum dross will release ammonia gas when it is contact with water, which is the main reason that the aluminum dross becomes a hazardous waste, therefore, the realization of the harmlessness and resourcezation of aluminum dross is of great significance to the sustainable development of aluminum resources. The source and physical and chemical properties of aluminum nitride in aluminum ash are described. The focus is on two different transformation behaviors of aluminum nitride: hydrolysis behavior and oxidation behavior. The composition of the product and influencing factors during the hydrolysis and oxidation of aluminum nitride are introduced in detail. According to the transformation behavior of aluminum nitride, the characteristics and differences of the current aluminum dross hydrometallurgy and pyrometallurgy nitrogen removal process are introduced, and the research direction of the future aluminum dross nitrogen removal process should not only focus on the process method, but also pay attention to the relevant testing standards, the composition of the product in the process and the safety of the process.