The decay of

61

Cu nucleus has been investigated with Ge (Li) and H

P

Ge detector

semiconductor electron spectrometer and Ge (Li) -NaI

γ-γ

coincidence spectrometer. 35

γ

rays from 12 excited levels have been found. The single and coincidence spectra show that 545 keV

1019 keV

γ

rays and 1019 keV energy level are wrong which appear in the

61

Cu decay scheme carried in «Table of isotopes» (the 7th edition 1978). The half-life time of

61

Cu nucleus and the internal conversion coefficient for 67 keV

γ

-transition are found to be T

1/2

=207.7±1.6min and

α

=0.12±0.01 respectively and then a decay scheme is proposed. In this paper we pay more attention to discussing the energy levels of 1014

1019 and 1997 keV as well as some weak

γ

rays.