树脂基复合材料已在航空航天工业中获得广泛应用。当今复合材料的低成本已是广泛议题。文章从工程角度讨论降低成本的有效途径，它们是通过改善树脂韧性提高设计许用应变，尽可能实现结构整体性，采用混杂复合材料结构，应用树脂渗透成形工艺和电子束固化技术。

Polymer-base advanced composites have been widely used in aerospace industries. Low cost production of composites airframe structure is the burning issue of today in aerospace industry at home and abroad. This paper gives a summarized account of effective approach for reducing cost in engineering view. They are： enhance allowable strain value through modifying toughness of resin as matrix of composite, realizing integration of structure as could as possible, and using technology of resin infusion and electron beam curing.