The invention discloses a sample loom capable of being used for weaving a three-dimensional orthogonal multi-layer fabric and a weaving method thereof. The sample loom and the weaving method are used for achieving integration of multiple functions into one machine; on the same sample loom, not only can a single-layer fabric be woven, but also the orthogonal multi-layer fabric can be woven. The sample loom comprises a rack, and a Z yarn weaving beam, a Z yarn guide roller, a warp yarn weaving beam, a warp yarn guide roller, a warp yarn positioning plate, a heald frame, a reed, a rapier and an electric cylinder which are connected to the rack; the Z yarn weaving beam, the Z yarn guide roller, the warp yarn weaving beam and the warp yarn guide roller are all positioned at one side of the warp yarn positioning plate; the heald frame, the reed and the rapier are sequentially arranged at the other side of the warp yarn positioning plate; the heald frame is closest to the warp yarn positioning plate; the rapier is connected to the electric cylinder.