Bodily tissue is that detection is automatically detected certainly with high-precision. The detection device 10 of ultrasonic wave bodily tissue may include transmitter/receiver unit 11, two dimensional data acquisition unit 14, spatial frequency distribution unit 15 and unit 16. Transmitting and receiving unit 11 can be by ultrasonic signal emission a to sampled echo signals and reception ultrasonic signal. Two dimensional data acquisition unit 14 can form ultrasonic signal and the scanning direction of the direction of transfer of two-dimentional echo. Spatial frequency distribution unit 15 can execute the conversion of spatial frequency and calculate the determination position of the spatial frequency distribution of two-dimentional echo. Judging unit 16 may determine whether to determine the bodily tissue of position, be scanning direction spatial frequency distribution of the amplitude in the ultrasonic signal of direction of transfer and the amplitude of molecular weight distribution of detection based on distribution.
