This paper aims to discuss how adjectives are reduplicated in Southern Min, what grammatical functions are manifested by reduplicated adjectives, and what are the constraints imposed on the reduplication of adjectives and the distributions of reduplicated adjectives in this dialect. We reveal the significant grammatical properties as well as syntactic characteristics with regard to adjective reduplication in Southern Min. Contrary to Li and Thompson (1981), we think the reduplication of Southern Min adjectives is rule-governed and display a few descriptive generalizations to account for the reduplicatability or non-reduplicatability of adjectives in Southern Min. We have also shown descriptively more adequate generalizations to account for the distributions of different types of reduplicated adjectives in Southern Min. To sum up, reduplication of adjectives in Southern Min has relevance not only to morphology and syntax but also to semantics and pragmatics.