In this paper, we propose English word display interfaces to improve short-term memory: a basic display, a rotation change display, a size change display, and a color change display. Using these display interfaces, we apply the word recall memory test to users. Experimental results show that the users recall more English words in the rotation change display and the color change display, as compared with the basic display and the size change display. Also, the users think that the rotation change display and the color change display are more helpful for short-term memory than the basic display and the size change display. It describes that the word display interface can have an influence on short term memory.