The purpose of this study is to investigate any differences in simile comprehension skills between language development delayed children with borderline intellectual functioning (BIF) and general children who were matched language ages. The subjects of this study were 12 language development delayed children with BIF and 20 general children who were matched language age. All children read the 20 simile sentences that could be categorized into meaning simile types(into idiom similes, non-idiom similes) and the scopes of ideas simile types(extensive similes, intensive similes). After then, they chose the most appropriate meaning of the simile sentence among the three examples. The results of the study showed that language development delayed children with BIF statistically significant lower level of performance in the simile comprehension task than general children at similar ages, but the error patterns of the two groups were similar.