We have been studying quantitative measurement technique for acoustic cavitation in water. We have considered the use of broadband integrated voltage (BIV). BIV was calculated from the high frequency components of signals generated from the cavitation measured by a hollow cylinder type cavitation sensor. The result showed that BIV was dependent on the dissolved oxygen level in distilled water that was used as one of the parameters of the cavitation generation. Also, there was correlation between BIV and the amount of active oxygen species generated by the cavitation. This indicates that BIV has the potential to be used as an index of the amount of generated cavitation in water. In the future, this technique will be applicable to the ultrasound equipment such as an ultrasonic washing machine.