With the growth of aluminum profile industry, the technology of surface treatment of aluminum profile sees constant renovation, and the requirements to quality of aluminum profile surface also keeps high. For example, such high-grade aluminum profiles as three (two) acid polished material, electrolytic polished material, polished and oxidized silvery material, polished and electrophoretic material as well as polished and nickel plated material all require mechanical polishing treatment on the surface for the purpose of removing such surface defects as naturally oxidized film, extruded lines etc. to form a bright mirror effect on the surface of aluminum profile. The aluminum profile after being subject to mechanical polishing treatment and various chemical treatments boasts high luster, soft color, high grade and elegant appearance, and guides the trend of development of aluminum profile application.