Abstract: The effect of reanodizing techological factors on friction coefficient of lubricant anodic film was investigaed. Results revealed that the influence of reanodizing current density pH value and concentration of (NH₄)₂MoS₄ solution on friction coefficient were all indirect. The colorness of reanodizing film was adjusted by these factors connected with reanodizing time. High temperature post-treatment, particularly in Ar₂ environment, could further more lower friction coefficient. Also the mechanism of lowering of friction coefficient after reanodizng treatment was discussed.