An investigation is reported in which four three-dimensional angle-interlock architectural fabrics were designed and woven. Composite panels were manufactured by impregnating the fabrics with resin.The related experiments included tension, compression and bending. All those tests were performed to measure the Young's moduli and strengths in the 0°(warp direction), 30°, 45°, 60°, 90° (weft direction). The experimental methods, preforms parameters were also described in this paper. The results show that, mechanical properties of four three-dimensional angle-interlock architectural composites behaved in-plane anisotropic , two peak values along the warp and weft direction respectively appeared in any one graph , and the yarn-stuffer played a key role in determining mechanical properties of three-dimensional angle-interlock architectural composites, especially contributed intensifier in corresponding direction obviously.