Abstract: The design and specifications of the dipoles, quadrupoles lens and its power supplies for radioactive ion beam line in Lanzhou (RIBLL) are described. Considering the influence of quadratics, the entrance and exit plans of the dipoles are made conicoids, the dipoles not only can deflex ions, but also can focus at the entries and disperse the ion at the exits. The high power switch supplies are used successfully in RIBLL for the first time.