简要介绍了唐家山堰塞湖应急处置的有关情况，归纳了堰塞湖处置的一般性认识，从减灾风险管理及其风险决策出发，探讨了减灾管理工程的内涵和应用，分析了唐家山堰塞湖处置成功对丰富和发展减灾管理理论和实践所具有的重要意义，并针对减灾管理得出了几点结论。

This thesis briefly introduces the emergency handling of Tangjiashan barrier lake, and concludes the general cognition for the barrier lakes handling. Based on the risk management and risk decision-making, discusses the connotation and application of the thesis disaster reduction management project, and analyzes the importance of Tangjiashan barrier lake's successful handling for the enrichment and development of disaster reduction management theory and practice. Finally, several conclusions are educed for disaster reduction management.