在我国主要农田生态系统中，存在着丰富的捕食性昆虫资源，它们在农作物害虫的生物防治或自然控制中起到重要作用。其中瓢虫类天敌是应用相对广泛的一种捕食性天敌，一部分已经实现商品化生产。作为华北平原重要的水源涵养地区、防风固沙屏障、生物多样性保护重点区域—承德市，该地区昆虫资源相关研究较为缺乏。为了促进该地区瓢虫多样性数据积累和国家层面的天地大数据化共享与发展，本研究历时4年，选取当地主要大田作物，采取马来氏网收集和人工定点两种调查方法，定点、定期对承德市隆化县大田作物的瓢虫资源进行了调查，收集了采集地不同种类瓢虫的种群数量统计数据、生态图片、标本图片及采集地环境图片等，建立了2018—2021年承德市隆化县农田作物上瓢虫数据集，为当地农业开展优势天敌利用工作提供数据支持，同时也为建立天敌识别系统提供大量基础数据。

There are abundance predacious natural enemy resources in main agro-ecosystems in China. They play important roles in pest biological control or natural control. Coccinellids are predacious natural enemies that widely applied, among which some have already been commercially produced. Chengde city is an important water-conserving area, a barrier for wind and sand control, and a key area for biodiversity conservation in the North China Plain. But limited studies have been performed on local insect resources. In the present study, we investigated coccinellid resources in main field crops in Longhua, Chengde, to promote local coccinellid biodiversity data accumulation and countrywide share and development of natural enemy data.Data were obtained through manual survey and malaise trap, on fixed sites with fixed frequency during 4 consecutive years. Population dynamics data, high-definition ecological pictures, specimen pictures, and environmental pictures were collected. A dataset of coccinellids on field crops in Longhua, Chengde were established, providing data bases for utilizing local dominant natural enemies. Pictures also provide data for further developing AI identification system of natural enemies.