The whole world is subject to population aging, which, for the elderly, means the aging of their physiological functions. Such a trend will bring impact and inconvenience to people's utilization of information technologies. In this study, attempts have been made to improve the elderly's experience in using the 'multimedia information station' interface of the convenience stores. In the first stage, factors that affect the elderly's interface operation are summarized and classified, namely the 'button pattern', 'composite interface', 'information classification' and 'temporal classification'; in the second stage, the above four variables are put into Interface A and Interface B by design methods for a single factor test one by one, in order to further understand the impact of four factors on the elderly's interface usage, subjective satisfaction and mental load. The results turn out to be: 1. there is no obvious difference in the interface usage between 2D and 3D “button patterns”; 2. simplifying the introduction to the interface will help the elderly understand the information about the interface; 3. the possession of network operation experience will help the elderly save the time spent on interface operation, and lower their mental load but has no impact on the subjective satisfaction concerning the interface operation.