This study is an expanded paper of Park, Lee, Lim (2008), which investigated the lexical ability of university students with visual impairments. Based on the findings of Park, Lee, Lim (2008), the present study examines the lexical ability of university students with hearing and visual impairments. A total of 146 university students participated in this study and they were divided into as one control group and two experimental groups. The data were collected by the questionnaire including their background information and the measurement of their lexical ability and were analyzed by the Analysis of Variance (ANOVA) and chi-square(X2). The findings of the study are as follows: (a) the English lexical ability of the students with hearing impaired is significantly less than that one of the control group and the group of students with visual impairments, especially at on the level of middle and high school lexis; (b) the relationship between the lexical ability of the students with hearing and visual impairments and their background information regarding their hearing impaired age and their impairing level was found to be somewhat correlated; and (c) more importantly, the visual and hearing impaired students’ difficulty about learning English is different from the one of the control group and they were less exposed to English from the beginning. The results are expected to give empirical evidence and suggestions for a better understanding of the reality of the hearing and visually impaired students’ lexical ability to help their English learning.