A simple common-path interfering device used for large-area production of complicated photonic quasicrystals in sub-micron scale was presented. The quasicrystalline structures were designed and their diffraction patterns were obtained to prove the multi-fold rotational symmetry. By using the setup, all kinds of quasicrystals with arbitrary complexity and rotational symmetry can be designed and fabricated. Furthermore, ten-fold quasicrystalline structures were produced experimentally. The atomic force microscope measurements and diffraction patterns reveal the long-range directivity and rotational symmetry. The experimental results show that the quasicrystal has a diameter of 1.2 μm for a ten-fold lattice and 377 nm for a minimum unit. Compared with the theoretical data 1.25 μm and 392.5nm, there is a difference of 4%. A good agreement has been obtained between the experimental and theoretical results. This is promising for the investigation on photonic devices based on the photonic bandgaps.