The potato starch processing process includes: conveying, cleaning and impurity removal, crushing and extraction, filtering and separating fibers, sand removal, refining and recycling, removing moisture, drying and packaging. The potato starch processing equipment includes a potato dry cleaning machine (dry screen), a stone removal machine, a drum cleaning machine, a cutting machine, a file mill, a centrifugal screen, a sand removal device, a cyclone group, a vacuum dewatering machine, an airflow dryer, a vibrating screen, and a packaging machine.