Abstract: This paper summarizes the research result of soil organic nitrogen mineralization at present, particularly expounds those factors which influence soil organic nitrogen mineralization. These factors include temperature, moisture, cultivate system, fertilizer, soil management beforehand and so on. In these factors, both temperature and moisture affect the amount of nitrogen mineralization and the velocity of mineralization, moreover it is being apparent interaction between temperature and moisture. Cultivate system may change the property of soil, therefore it leads to the variety of soil nitrogen mineralization course. Different fertilizers mixed to use will exert different influence on nitrogen mineralization. Soil management beforehand will also have an effect on soil nitrogen mineralization. This paper also generalizes the main research methods in soil nitrogen minerlization and models which have been founded already up to now, and then the paper anatomies the apply condition of all kinds of research methods and apply range of all kinds of models.