Abstract: In case of different heat treatment conditions and the mass ratio of antimony-doped, fiber specific resistance value was measured after the Sb- doped tin dioxide (ATO) coating process on the surface of the glass fiber. Taguchi method, which explored influence degree of the initial concentration, heat treatment temperature, treatment time and doping mass ratio on the experimental results, was used to optimize and analyze the experimental data. After the treatment, differences were contrastively observed by scanning electron microscopy (SEM). It shows that the conductive property of the glass fiber is significantly enhanced. Moreover, the obtained optimum condition is 450℃ of heat treatment temperature, 0.9% of doping mass ratio, 1.5 h of heat treatment time and 0.8mol / L of initial concentration. Furthermore, the influence is in descending order.

Key words: ATO film, sol-gel method, Taguchi method, glass fiber