集中育秧是水稻育秧技术和组织管理方式的创新发展，不仅有利于培育标准化壮秧、降低育秧成本，而且有利于加快推进水稻生产机械化、规模化、标准化发展。本文总结了目前江苏省水稻机插育秧存在的主要技术问题，概述了集中育秧的发展创新及其主要育秧形式，介绍了集中育秧壮秧培育的关键技术，提出了推进水稻机插集中育秧技术推广应用的对策措施。

Concentrating seedlings is the innovative development of seedling raising technology and organization and management mode of rice. It is not only beneficial to cultivate standardized seedlings and reduce the cost of seedlings, but also to accelerate the mechanized, large-scale and standardized development of rice production. The article summarizes the main technical problems of seedling raising of machine-transplanted rice at present in Jiangsu Province, overviews the development and innovation of concentrating seedlings and its main seedling forms, introduces the key techniques of cultivating strong seedlings of concentrating seedlings, and proposes the countermeasures to accelerate the popularization and application of concentrating seedlings technology of machine-transplanted rice.