Abstract: A three-dimensional analytical framework of “policy tools-subject matter of legal norms-validity of legal norms” is constructed to conduct a content analysis and quantitative evaluation of the legal normative texts on forensic appraisal at the national level in China. The findings reveal the following issues within the current legal norms: an imbalanced structure of policy tools; significant disparities in the regulatory focus across different subject matters; and a generally low level of normative validity coupled with insufficient systemic integration. To improve the system of legal norms for forensic appraisal and perfect the unified management system, the following recommendations are proposed: optimize the mix of policy tools to achieve a more balanced structure and enhance support for industry development; broaden the coverage of regulated subject matters while prioritizing breakthroughs in key areas; and transition from a fragmented approach to a systematic one, thereby strengthening the legal system in forensic appraisal.

Key words: forensic appraisal, empirical research, policy tools, subject matter of legal norms, validity of legal norms

摘要： 构建“政策工具-法律规范主题-法律规范效力”三维分析框架，对国家层面的司法鉴定法律规范文本进行内容分析和量化评价。发现当前司法鉴定法律规范中存在以下问题：政策工具比例失衡；对不同主题的关注程度悬殊；法律规范效力等级较低且系统性有待提升。为完善司法鉴定法律规范体系，健全统一司法鉴定管理体制，提出以下优化建议：均衡优化政策工具结构，加大对行业发展支持力度；增加主题覆盖范围，关键领域重点突破；改分散化为体系化，加强司法鉴定法制化建设。

关键词: 司法鉴定, 实证研究, 政策工具, 法律规范主题, 法律规范效力