The findings of the general circulation of the adrenal gland in 40 autopsies are presented. The arterial supply arose from three pedicles: superior, middle, and inferior, Each pedicle had branches up to three or none and most commonly had one. The superior pedicle arose from ip-silateral inferior phrenic artery, and the inferior pedicle arose from ipsilateral renal artery. The middle pedicle was the most irregular and could arise from three vessels: inferior phrenic artery, aorta, and celiac trunk, and aorta was dominant. There was no significant difference of arterial variation of superior and inferior pedicles between the left and right adrenal glands (paired t tests, p > 0.05), but the middle pedicles showed asymmetrical character (p < 0.05). (J Urol R.O.C., 9:144-147,1998)