High quality core and clad glass with good physicochemical matching properties is prepared, La2O3 as core glass for its large cationic diameter and low refractive index material as clad glass. Rod-tube draw technique is adopted to prepare image transfer single fiber which, a kind of double clad fiber, is tested afterwards. This experiment gains image transfer fiber material, whose single fiber diameter is 30 μm, transmittance is 48%/m, core-clad concentricity error is 0.01%, and numerical aperture is 0.82. These results indicate optical acceptance angle of this fiber material reaching 110°. Optical collection ability is greatly improved.