Saturation of received signals and generation of artifacts that are associated with tap concentration are prevented from occurring even if the differences in the delay amount between each of transducers are small. The ultrasound diagnosis apparatus comprises a plurality of ultrasound transducers, a plurality of taps, a delay amount calculator, a channel distributor, and a delay processor. The delay amount calculator calculates a first delay amount. The channel distributor specifies the minimum delay amount and the maximum delay amount from the first delay amount. Further, the channel distributor divides the range from the minimum delay amount to the maximum delay amount by the number of taps, and relates each to a tap. The channel distributor also inputs a signal output from an ultrasound transducer to the tap related to the divided range including the corresponding first delay amount. The delay processor relates the tap to a previously set second delay amount, and conducts delay processing on the signal input in each of the taps based on the related second delay amount.
