Passivating solution for aluminum plate can remove rust. According to relevant public information, aluminum passivators (aluminum passivators and aluminum polishes) are special environmental passivators for various aluminum products and aluminum alloys, and are suitable for forming chemical passivation films on aluminum and aluminum alloys. The chemical passivation film obtained with this aluminum passivator has excellent corrosion resistance and can be used as pretreatment for paint, plastic coating and decoration.