本文主要以城市公共安全报警柱为研究对象,针对其功能单一、按键不明显以及外观不能与城市很好融合等缺陷与不足进行了全面的分析,并根据分析结果对其进行再设计。再设计内容主要包括无障碍设计、医药箱嵌入以及外观的改造。城市公共安全报警柱再设计旨在帮助人们争取突发事件发生时的宝贵时间,打造平安和谐城市。 In this paper, the city public security alarm column as the research object, for a single function, the key is not obvious and the appearance can not be well integrated with the city defects and deficiencies such as a comprehensive analysis and re-design based on the analysis results. Re-design mainly includes accessibility design, medicine box embedded and the appearance of the transformation. Urban public security alarm column re-designed to help people fight for the precious time when an emergency occurs, to create a safe and harmonious city.