法律援助服务作为保障经济困难公民和特殊案件当事人基本权益的重要法律制度，通过政府购买的形式进行服务供给已成为主要趋势。伴随我国地方政府购买法律援助服务实践的开展，购买成效如何、购买效果如何保证、购买过程如何完善则成为亟待解决的关键问题。本项目为解决相关问题，进行如下研究：①基于多学科视阈，将政府购买公共服务流程（购买决策—服务商选择—合作管理—绩效评价）与法律援助服务特殊性相结合，形成政府购买法律援助服务综合化评估框架；②引入CIRO评估理念，构建包括初始评估、可达性评估、操作性评估和效果评估四个阶段的综合评估模型；③区分刑事、民事和行政三类法律援助案件在法律咨询、法律调节、庭审辩论、倡导服务环节的差异性，形成类型化的评估指标体系；④将理论评估模型应用于多个典型案例，分析评估结果，识别问题和关键因素，从政府购买法律援助服务全流程优化参与主体互动关系，形成政府购买法律援助服务整体性优化机制。

As an important legal system to protect the basic rights and interests of citizens and special groups, government purchasing has become the main trend in the delivery of legal aid services. With the development of the practice of local governments, how does purchase effect, how to guarantee the purchasing effectiveness, how to improve the purchasing process have become the key issues to be solved. In order to solve the related issues, we will carry out our research as follows: ①From the perspective of multi-disciplinary, we will construct the comprehensive evaluation framework of legal aid services in government purchasing based on the combining of the general process of government purchasing (purchase decision—service provider selection—cooperative management—performance evaluation) and the specificity of legal aid services. ②Constructing the comprehensive evaluation model with four evaluation stages, i.e. initial evaluation, accessibility evaluation, operational evaluation and performance evaluation, with introducing evaluation concept of CIRO.③Distinguishing differences among civil legal aid cases, criminal legal aid cases and administrative legal aid cases in legal advice, legal regulation, trial advocacy, advocacy services in order to form different types of evaluation index system.④The theoretical evaluation model is applied to several typical cases to analyze evaluation results, identify problems and key factors, so that optimizing interaction relationship of participants through government purchasing of legal aid services, finally building comprehensive optimization mechanism of government purchasing of legal aid services.