Neurofeedback training has shown the benefits on the improvement of cognition and successful treatment of many mental disorders, but its effects on physical balance in healthy people have not been reported. This paper presents a pilot study on improving balance ability in healthy people by neurofeedback training. To evaluate balance ability and its change after neurofeedback training in an economical and effective way, we first investigated the Nintendo Wii Balance Board (WBB) as a balance measurement system and the experimental results showed good reliability and sensitivity of WBB in the test. Then one young healthy participant performed neurofeedback training over 5 consecutive days with his balance measured using a WBB before and after training. The participant's balance was found improved in the posture of left leg standing with eyes open after training.