首先阐述了坡面土壤水蚀建模的必要性。考虑到原有水蚀模型类型的不足 ,对当前水蚀模型按解题方法重新归为形式逻辑计算模型及辩证逻辑计算模型两类。其中 ,形式逻辑计算模型又分为经验模型、半概念半经验模型、半过程半经验模型以及理论模型 4类。结合实例阐述这几类模型的主要特性及相关关系 Firstly, the necessity of modeling soil erosion on slope surface is expounded. Taking into account the deficiencies of the original water erosion model types, the current water erosion model is reconstructed into two categories: formal logic calculation model and dialectical logic calculation model. Among them, formal logic calculation model is divided into experience model, semi-conceptual semi-empirical model, semi-empirical semi-empirical model and theoretical model. The main characteristics of these types of models and their relations are illustrated with examples