The present invention relates to a compound capable of inducing apoptosis and autophagy in breast cancer cell, including a demethoxycurcumin and a photosensitizer, being able to induce apoptosis and autophagy after being excited by light source with specific wavelength, and inhibiting proliferative effect in breast cancer cell.本發明係一種能引發乳癌細胞凋亡及自噬之組合物,係包含一去甲氧基薑黃素及一感光劑,在被具特定波長之光源激化後,可引發乳癌細胞凋亡及自噬,以抑制乳癌細胞增生。