This study investigated the impact of taking photos using mobile phones on the English phrase-learning performance of English as a second-language learners. A total of 116 students enrolled in a college in Central Taiwan participated in this study. The participants were divided randomly into two groups: a control group and an experimental group (EG). The control group was assigned an online phrase-reading activity for the purpose of phrase learning, whereas the EG was instructed to engage in phrase learning by taking photos using their mobile phones. The study primarily investigated the participants' daily encounters with newly acquired phrases through the use of photos taken using mobile phones, which were associated with the sentences they constructed. The results of the study indicated that the students in the EG significantly outperformed the control students on the delayed posttest, and the EG exhibited a significantly higher level of perception toward the phrase-learning activities compared with that of the control group.