The work aims to obtain the corresponding cushioning curves based on the stress-strain curves of the cushioning materials and design a series of software interfaces. According to the pixel values of the image, the stress-strain data of the cushioning materials in the literatures that have been published were extracted. Taking EPS foam material as an example, its cushion coefficient-maximum stress curve and maximum acceleration-static stress curve were obtained. Moreover, Matlab/GUI was used to obtain the user interface. This method provides efficient ways for package design.