Abstract: Based on the feature of the existing railway,the authors analyze types and mechanisms of roadbed defects. The authors then present a new method in detection of roadbed defects, which combines the spot detection and section verification using modern equipment. Considering complexity of measures for treatment of roadbed defection as well as difficulties in their implementation, the authors conclude that an intelligent management system of railway roadbed defects will be a very effective tool in assessing railroad roadbed defects and selecting appropriate measures for treatment.