The production theory and the production process of MnN by solid-nitration process with manganese power is introduced. In order to obtain MnN, manganese power has been nitrided by pure nitrogen at high temperature in pipe-type-oven at lab. Suitable nitration technical parameters, such as manganese power size, nitriding temperature and nitriding time have been gotten by a series of experiments. MnN production that nitrogen content is 6.94% has been obtained. In addition, three alloys composed manganese nitrogen (Mn_(3)N_(2), Mn_(2)N,Mn_(4)N) have been obtained and their distributions are observed by the way of XRD and SEM.