The present invention relates to a cuff for a blood pressure meter, and more particularly relates to a cuff for a blood pressure meter, which is jointed to a blood pressure for measuring blood pressure and is worn on the body in such a way as to compress a blood pressure measurement site, and which comprises: a cuff band which is worn around the blood pressure measurement site of the body and is provided with an expansion bladder that expands on the inside a fluid supply apparatus which is connected to the cuff band and supplies a fluid so as to make the expansion bladder expand and a bladder separator which is provided in the cuff band and splits the expansion bladder, that is expanded by means of the fluid supply apparatus, into at least two or more pats so as to effect split expansion of the same. When the present invention is employed, because the expansion bladder which compresses the blood pressure measurement site is split by means of the ladder separator, there is the advantageous effect that it expands and contracts to a length and width that match the firth of the blood pressure measurement site and accurate blood pressure measurement can be taken.
