中文摘要：

信息技术优化是新形势下民族地区基层社会风险治理的必然选择。它强调在原有管理体制的基础上，利用信息技术本身的刚性特点优化治理体系，使治理的运行更有效率。基于多个民族地区基层社会风险治理信息化案例的考察，信息化已为民族地区社会风险公共治理提供了可能和便利。然而，信息技术优化过程中的组织内外部影响因素产生的约束性条件不容忽视。基层政府应转变传统社会管理模式，以技术创新引领治理创新，提升社会治理能力。

英文摘要：

As an inevitable choice for grass-roots social risk governance in ethnic regions under the new situation, information technology optimization emphasizes optimizing the governance system to make it operate more efficiently by making use of fine rigidity of information technology on the basis of the existing governance system. According to the case investigation of grass-roots social risk governance in several ethnic regions, information technology has provided possibility and convenience for public governance of social risk in ethnic regions. However, during the process of information technology optimization, we should not neglect the constraints caused by influencing factors of the internal and external organization. Grass-roots governments need to change their traditional mode of social governance and implement governance innovation under the lead of technical innovation to improve the capability of social governance.