The problems on soil erosion control in railway engineering are studied, based on systematic analysis of soil erosion system in railway engineering, include the characteristic of soil erosion in railway engineering, the dynamic factors cause soil erosion and the topographic units easy to be eroded, etc. Some inappropriateness on soil erosion control in railway engineering is pointed out, furthermore, the principle and some advises on soil erosion control is put forward, all of these are expected be of usefulness for soil erosion control in railway engineering.