PROBLEM TO BE SOLVED: To provide a medical image processing apparatus, X-ray computerized tomography apparatus, and medical image processing method which can easily display medical images in a display direction in which the operator wants to observe the images.SOLUTION: A medical image processing apparatus according to the present invention includes a moving direction identification unit configured to identify a moving direction of an observed region of a subject depicted in a plurality of volume data collected by a medical diagnostic apparatus, each volume data of the plurality of volume data being collected for each time phase and a display direction setting unit configured to set a display direction of the plurality of volume data based on the identified moving direction.COPYRIGHT: (C)2015,JPO&INPIT