：文章从基础能力、初级知识服务能力、高级知识服务能力三个方面，筛选出十个二级指标，通过层次分析法确定指标权重，根据智能语音助手现阶段的智力水平，为每个二级指标选取了相应的测试问题，构建了智能语音助手的知识服务能力评价体系，最后以三个主流的智能语音助手为对象进行了实证评价分析。构建的评价指标体系具有实用性和动态性，基础能力的权重最大，初级知识服务能力和高级知识服务能力次之，实证研究的结果表明，现阶段主流的中文智能语音助手已经具备了一定的知识服务能力，但仍然存在较大的提升空间。

In this paper, ten secondary indicators are selected from three aspects: basic ability, primary knowledge service ability and advanced knowledge service ability. Then, the index weights of these indicators are determined by analytic hierarchy process. According to the intelligence level of intelligent voice assistant at present stage, the corresponding test questions are selected for each secondary indicator, and the evaluation system of knowledge service ability of intelligent voice assistant is constructed. Finally, three mainstream intelligent voice assistants are evaluated and analyzed by this evaluation system. The evaluation index system constructed in this paper is practical and dynamic, the weight of basic ability is the largest, followed by primary knowledge service ability and advanced knowledge service ability. The empirical results show that the mainstream Chinese intelligent voice assistant has certain degree of knowledge service ability at now, but there is still much room for improvement.