Abstract: An improved front gear-change device for bicycle, which features are: one side of a inner guide rod is set a cable guide for guiding speed-change cable, and the inner guide rod, the cable guide, a body and an outer guide rod are all made of plastic; there is a metal spacer on upper rim of inner guide rod for protection between a fine tuning screw, a fixing screw and inner guide rod, thus inner guide rod can avoid damage; the body is set plural tool holes for carry-on tools. The plastic part of the improved front gear-change device is made by direct inject molding, no additional machining.