Drawing and coating techniques of multi-mode graded-index silica optical fiber and their influences on the optical, mechanical properties are described. High-quality optical fibers with short wavelength loss (at 0.85μm)～2.5db/km, long wavelenth loss (at 1.8μ/m)～0.7db/km, strength ～100kpsi, fiber diameter 125±8μm and good coating concentricity may be fabricated by this technique for ternary system of GeO2-P2O5-SiO2. In addition, technological repeat was identified by some of the new data given in the end of this paper.