目的分析大榭港区2006-2011年鼠密度和种群变化状况。方法在大榭港区设立7个监测点,并利用夹夜法调查鼠密度和鼠种。结果共捕获鼠类1 026只,隶属2目2科5属7种,鼠密度从2006年的3.16%下降至2010年的0.1%以下,下降趋势明显。鼠类种群结构也发生了明显变化,2006-2008年鼠类优势种群为黑线姬鼠;2009年为小家鼠;2010-2011年为褐家鼠。结论大榭创建国际卫生港口期间所采取的防鼠措施非常有效,但仍有必要进一步开展鼠类监测来巩固成果。 Objective To analyze the rat density and population dynamics in Daxie Port from 2006 to 2011. Methods A total of 7 monitoring sites were set up in Daxie Port. Results A total of 1 026 rodents were captured, belonging to 2 orders, 2 families, 5 genera and 7 species. The density of rats dropped from 3.16% in 2006 to below 0.1% in 2010, showing a declining trend. The structure of rodents also changed significantly. The dominant species of rodents were Apodemus agrarius in 2006-2008, Mus musculus in 2009 and Rattus norvegicus in 2010-2011. Conclusion The anti-rat measures taken during Daxie’s establishment of an international health port are very effective, but there is still a need to further develop the monitoring of rats to consolidate the results.