“有机更新”理论作为指导历史街区与旧城改造的重要理论之一，在学术界已获得普遍认同与重视。然而，城市历史公共空间也是城市中一种不容忽视的重要空间形式，在其规划设计、改造过程中，“有机更新”理念同样适用。笔者以拉萨宗角禄康公园为例，运用SD法对其规划和改造结果进行了分析和评价，并以此为基础，提出城市历史公园规划设计和改造过程中的“有机更新”理念。

In the reconstruction process of historic district and old city, the method of “Organic renovation” has aroused interest in academic circles. The urban history public space is also one kind of important space form in the city, and in the process of plan and reconstruction, the concept of “Organic renovation” is suitable too. Take Lhasa Zongjiaolukang park as a case, this paper uses SD method to analysis and appraise the results of plan and reconstruction, and proposes the necessity of introducing the concept of “Organic renovation” to this area, then points out the questions that should be paid attention in the process.