The self-focus theory of depression (Ingram, 1990) predicts that the depressives remain self-focused when the external environment changed as compared with the nondepressives. Fifty-three male students participated in the following experiment. They were administered a self-rating depressive scale. About half of the subjects were heightened self-focused attention whereas the other half of the subjects were not. All subjects were instructed to solve tasks that required much attention. The results generally supported the hypothesis: (a) among subjects who were heightened selffocused attention, the depressives solved less tasks than the nondepressives; and (b) during the task-solving, the depressives focused more attention on themselves than the nondepressives did. On the other hand, among the subjects not showing heightened self-focused attention, the above mentioned differences were not found. The role of the self-focused attention in maintenance of depression was discussed.