目的了解和掌握沈阳市蟑螂种群分布及季节消长规律,为科学防治提供依据。方法采用粘捕法调查。沈阳市共设立18个蟑螂监测点,分别为居民区、宾馆、农贸市场、医院和餐饮外环境,监测点相对固定。结果沈阳市蟑螂平均密度为1.17只/张,平均侵害率为24.3%。城区室内以德国小蠊为绝对优势种群,占总体的98.6%;雌成虫比例较高,占总体的54.9%。蟑螂全年均有活动,在4-9月为活动频繁期。5年来农贸市场蟑螂平均密度和平均侵害率最高,分别为3.31只/张和38.6%。结论德国小蠊为沈阳市优势种群,农贸市场德国小蠊密度和侵害率最高,应加强对农贸市场蟑螂的监测和防治。 Objective To understand and grasp the cockroach population distribution and seasonal fluctuation pattern in Shenyang and provide the basis for scientific prevention and treatment. Methods using sticky catcher investigation. Shenyang City, a total of 18 cockroaches monitoring points were set up, namely residential areas, hotels, farmers markets, hospitals and catering outside the environment, the monitoring point is relatively fixed. Results The average density of cockroaches in Shenyang was 1.17 per Zhang, with an average invasion rate of 24.3%. In the urban area, Blattella germanica was the dominant species, accounting for 98.6% of the population. Female adults accounted for 54.9% of the total. Cockroaches are active throughout the year, from April to September for frequent activities. In the past five years, the average farm roach density and the average rate of infringement were the highest, at 3.31 pieces / piece and 38.6% respectively. Conclusion Blattella germanica is the dominant population in Shenyang. The density and infringement rate of Blattella germanica in the farmers’ market is the highest, so it is necessary to strengthen the monitoring and control of cockroaches on the farmer’s market.