本文报道采用鼠夹法、粉迹法及拖食法,对上海城市鼠密度进行了调查分析。结果观察到,在以黄胸鼠为主的地区,粉迹法测定鼠密度较稳定,拖食法次之,鼠夹法变化大。在以小家鼠为主的地区,粉迹法与鼠夹法的差别不明显。因此,测定城市室内鼠密度使用的监测与考核方法,应考虑鼠种及鼠的行为特点。 This article reports the use of mouse clamp method, chalking method and dragging method to investigate the density of Shanghai city rats. The results showed that in the area of ​​the main rat, the flour density measured by mouse method is more stable, followed by dragging method, mouse clamp method changes. In the area dominated by Mus musculus, the difference between puff pastel and rat females was not obvious. Therefore, the determination of urban indoor rat density monitoring and evaluation methods should take into account the behavioral characteristics of mice and mice.