Solvent extraction of some platinum group metals (Pd(II), Pt(IV), Rh(III)) and base metals (Fe(III), Cu(II), Zn(II)) in hydrochloric acid solution with N,N'-dimethyl-N,N'-di-n-octylthiodiglycolamide (MOTDA) was investigated. The extraction percentage of Pd(II) with MOTDA was nearly 100%, while MOTDA hardly extracted any of the other metal ions. It is noteworthy that the extraction of Pd(II) was extremely fast compared with the conventional extraction reagent, di-n-hexyl sulfide.