By cyclic voltammetry in alkaline solution investigatied electrochemical and electrocatalytic properties of meso-tetramethyltetrabenzoporphyrin with copper, iron, nickel and cobalt.. Influence of change of potentials in area from 0.5 to-1.4 B and speeds of scanning from 10 to 100 mV/s on cyclic I-E-curves and redox-transformations of catalysts is studied.