A hybrid journal bearing in which the hydrodynamic and hydrostatic pads were alternatively provided on an identical circumference in order to utilize the excellent damping and stability characteristics of a journal bearing was proposed for a high-speed spindle. As a test result, the temperature rise of the hybrid journal bearing was lower than 1.5K at DN value up to 720000 (Diameter; 60mm, N; 12000rpm). Load carrying capacity, bearing rigidity, and power loss of the hybrid journal bearing were also measured in the experiment. The all value obtained were resulted in fairly good comparing with a conventional journal bearing. From this study, the possibility of a hybrid journal bearing for more high-speed spindle was shown.