众所周知，二维织物增强的复合材料有层间强度差的问题，为从根本上提高其损伤害限和可靠性，就需要提高材料厚度方向的整体性，三维机织空芯预制件应运而生。本文通过大量理论研究与织造实践，论述了三维机织空芯织物的整体织造技术、结构设计及复合工艺，为批量化生产奠定了基础。 It is well-known that two-dimensional fabric-reinforced composites have the problem of poor interlayer strength. In order to fundamentally improve the damage limit and reliability, it is necessary to improve the integrity of the material in the thickness direction. Three-dimensional woven hollow-core preforms have emerged . Through a great deal of theoretical research and weaving practice, this paper discusses the overall weaving technology, structural design and composite technology of 3D woven hollow-core fabric, which lays the foundation for mass production.