An ultrasound diagnostic device processes ultrasound images obtained by ultrasound scanning on a diagnostic target. The ultrasound images include a set of material images for analyzing shape of the diagnostic target and a diagnostic image for analyzing a diagnostic value of a specific part of the diagnostic target. An image analysis measurement unit generates a schematic diagram showing schematic shape of the diagnostic target based on the shape of the diagnostic target. A relative position calculation unit calculates a relative position of local shape of the specific part to the shape of the diagnostic target. A diagnostic value superimposing unit identifies a position on the schematic shape of the diagnostic target that corresponds to a position of the specific part based on the relative position, and superimposes data of the diagnostic value on the identified position on the schematic shape of the diagnostic target shown in the schematic diagram.
