A medical image diagnosis support system is configured to improve the processing efficiency and analysis accuracy of CAD processing. This invention is a medical image diagnosis support system which includes a CAD server and a PACS/viewer apparatus. This system includes a first processing path in which a processed image obtained by executing image processing including noise suppression processing or sharpening processing for a medical image obtained by the imaging apparatus is stored in the PACS/viewer apparatus, a second processing path in which a CAD result obtained by executing CAD processing for a medical image obtained by the imaging apparatus is stored in the PACS/viewer apparatus, and a processing unit configured to execute a process of associating the processed image with the CAD result in the first processing path and the second processing path.