The spectroscopy collection system of femtosecond laser-induced copper plasma with magnetic confinement was established. The magnetic confinement effects in the femtosecond laser-induced Cu plasma were investigated by optical emission spectroscopy. When plasma was confined by magnetic field with intensity of 0.67 T, the plasma emission continuous and discrete spectrum enhanced meanwhile the discrete spectrum enhanced more significantly. The enhancement factor of Cu atomic line with higher upper level energy is larger. The Cu I 507.6 nm is emitted from the highest upper level energy; its enhancement factor is largest and could be up to 2.8. The persistence duration of copper atomic spectra last longer. The copper atomic spectra enhanced significantly in the early delay time and weakly in late delay time. The electron temperature and number density of plasma in magnetic filed improved.