The present disclosure relates to a method for supporting a mold design of a vehicle body panel and a system for performing the same. A method for supporting a mold design according to an exemplary embodiment may include: generating a target depth map (a depth map), which is a 2D image, from target design data of a target vehicle body panel, which is a 3D image; inputting the target depth map to a prediction model of an artificial neural network structure to obtain a correction value data for mold design for designing mold data from the target design data; and visualizing and displaying a correction value data for the mold design.