According to an image diagnosis device for photographing a breast by using the matching of a tactile image and a near-infrared image and a method for acquiring a breast tissue image, provided in the present invention, a tactile image and a near-infrared image are simultaneously acquired through a tactile image acquisition unit and a near-infrared image acquisition unit, the acquired images are mapped to a pre-stored breast model so as to match the two images, and a simple, economic and accurate early diagnosis for a breast cancer is enabled without any help from a doctor by simultaneously deriving an elasticity distribution and a hemoglobin distribution of the breast.
