[Problems] In a hemodialysis treatment, when there is a sudden decrease of a circulating blood volume variation rate (”BV) of a patient, the present invention is intended to provide a hemodialysis treatment apparatus capable of easily comparing ”BV with another vital sign different from ”BV, and easily determining whether or not ”BV is an omen of a shock symptom. [Means for solving problems] A hemodialysis treatment apparatus for carrying out a hemodialysis treatment by performing hemodialysis and ultrafiltration upon an extracorporeally-circulating blood of a patient comprising a circulating blood volume variation rate detecting means 10 for successively detecting a variation rate of a volume of circulating blood (”BV) of the patient as the hemodialysis treatment time passes, a vital sign detecting means 9 for successively detecting another vital sign different from the extracorporeally-circulating blood volume variation rate (”B.V) of the patient as the hemodialysis treatment time passes, and a display means 13 capable of displaying a value detected by the circulating blood volume variation rate detecting means 10 and a value detected by the vital sign detecting means 9 on a time basis on the identical screen 13a.
