The invention discloses a wear-resistant high-chromium cast iron centrifugal composite roller for ribbon steel two-roller mill and a production process. The roller comprises a three-layer centrifugalcomposite structure, a working layer is made of high-chromium cast iron, a middle transition layer is made of graphitic steel, and a roller core portion is made of spheroidal cast iron. The productionprocess includes processes of molten iron modification, centrifugal casting and thermal treatment, wherein the thermal treatment process refers to adopting two sections of stress relief annealing thermal treatment processes. Through reasonable composition design, molten iron modification, special centrifugal casting and thermal treatment, wear resistance and thermostability of the roller are improved remarkably. The roller is safe and reliable to use; compared with common nickel chromium molybdenum infinitely chilled spheroidal cast iron centrifugal rollers, production cost of the roller is reduced by 10-20%, rolled total amount of steel can reach 2-3 times, and the roller has remarkable economic and social benefit when being popularized and applied and can completely replace the common nickel chromium molybdenum infinitely chilled spheroidal cast iron centrifugal rollers.