Abstract: An ultrasonic imaging method and device (10) and a computer-readable storage medium. The ultrasonic imaging method comprises: transmitting ultrasonic waves to a uterine region of an object to be detected (S201); receiving ultrasonic echoes based on the ultrasonic waves reflected from the uterine region of said object, and acquiring ultrasonic echo signals on the basis of the ultrasonic echoes (S202); processing the ultrasonic echo signals to obtain three-dimensional data of the uterine region of said object (S203); identifying the endometrium from the three-dimensional data of the uterine region according to endometrium image characteristics of the uterine region to obtain position information of the identified endometrium (S204); according to the position information of the identified endometrium, imaging the cross section of the identified endometrium on the basis of the three-dimensional data to obtain an cross-sectional endometrium image; and displaying the cross-sectional endometrium image.