The Coulomb excitation experiment on the Hf-178 was performed using 650 MeV
beam of Xe-136. The first observation of discrete transitions in the K-pi
= 8(-) isomeric band, Coulomb excited from K-pi = 0(+) ground state, is rep
orted. The possible mechanisms of E1 coupling of the ground state band and
the isomeric band is discussed.