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Manufacturing techniques and bending properties of three-dimensional (3D) natural fiber composites were investigated in current research.Jute fiber yarn was used to weave orthogonal 3-D preforms by a modified Dobby loom.The natural fiber yams were treated with sizing agent to improve strength, so that, the yarn can be used to weave as a 3D orthogonal fabrics by the loom.The preforms after woven have been treated with an alkaline solution to remove oil that inhibited by the fibers.