捕食性瓢虫是控制农田虫害的重要天敌类群之一，可取食蚜虫、木虱、粉虱、蚧壳虫及部分鳞翅目和鞘翅目昆虫的卵、低龄幼虫和蛹。农田常见种类主要有异色瓢虫、龟纹瓢虫、多异瓢虫、七星瓢虫等，对农田虫害有较强的持续控制作用。黑龙江农作物种植区域辽阔，生态类型多样，农田天敌昆虫利用潜力大。在本工作中，文章通过人工调查和马氏网采集的方法，根据《天敌等昆虫资源数据中心监测任务规范》要求，在作物生长季对哈尔滨地区玉米、大豆、小麦田的瓢虫数量和种类进行监测，并采集了生境情况等信息，建立哈尔滨农田瓢虫种群动态数据集，为本地农田生态系统的研究及虫害的防控提供数据支撑。

Predacious coccinellid are important natural enemies that control insect pests in farmlands. It can feed on the eggs, young larvae and pupae of aphids, psyllids, whiteflies, scale insects and some Lepidoptera and Coleoptera insects. Commonly seen species in fields include Harmonia axyridis, Propylea japonica, Hippodamia Variegata, Coccinella Septempunctata, etc. they have a strong continuous control effect on farmland pests. There are large crop cultivation areas and a variety of ecological land types in Heilongjiang, providing great potentials of biological control with natural enemies. In the present study, we requirements according to ' Data Center Monitoring Mission Specification for Natural Enemies and Other Insect Resources', and monitored seasonal coccinellid species and abundances in corn, soybean, and wheat fields in Harbin, and collected habitat situation information. We established the dynamic data set of ladybug population in Harbin farm. These data support further research on biodiversity and pest management in local agro-ecosystem.