A high performance conductive endless belt and an image forming apparatus using the same are provided, the conductive endless belt having superior strength, in particular, superior folding endurance, stable and appropriate electrical resistance even in high voltage application, less voltage dependence of electrical resistance, and superior durability in image output and transfer efficiency. The conductive endless belt is formed by adding a high molecular weight ionic conductive agent and a fluorinated surfactant to a base material selected from the group consisting of (a) a thermoplastic PA, (b) an ABS resin, (c) a thermoplastic POM, (d) a polymer alloy or a polymer blend containing at least two of the above (a) to (c), and (e) a polymer alloy or a polymer blend containing a thermoplastic resin and at least one of the above (a) to (c).