Han, Sang Woo. 1999. How to Approach Old English Syntactic Structure. Studies in Modern Grammar 17, 179-190. The aim of this paper is to show (a) that both the SOVI hypothesis and the double underlying structure hypothesis have some problems in the explanation of Old English syntactic structure, and (b) that in studying Old English syntactic structure, we must put our eyes on existing Old English manuscripts more than before. Old English was a language in the mist of a change from SOV to SVO word order. Therefore, we cannot approach Old English with current synchronic linguistic theories only. Finally I would like to emphasize the importance of studying Old English manuscripts in advance to modern linguistic theory, and propose a SIOV underlying structure with a leftward verb- movement rule to explain various types of Old English word orders.