本文对稻田捕食性节肢动物群落的种库和群落的重建进行了初步的研究。害虫防治史、植被覆盖度、环境复杂性和气候因子等对种库都有不同程度的影响。种库的结构决定了群落的重建。重建群落的优势种、物种丰富度和群落多样性与种库呈正相关关系。生产上可采取适当的措施保护天敌群落的种库，促进天敌群落的迅速重建，充分发挥天敌对害虫的控制作用 In this paper, preliminary studies on the species pool and community reconstruction of predatory arthropod communities in paddy fields were conducted. The history of pest control, vegetation coverage, environmental complexity and climatic factors all have varying degrees of impacts on the seed banks. The structure of the seed bank determines the reconstruction of the community. The dominant species, species richness and community diversity of rebuilding community were positively correlated with the species pool. In production, appropriate measures may be taken to protect the species stocks of natural enemy communities, promote the rapid reconstruction of natural enemy communities and give full play to the control effects of natural enemies on pests