The wooden stupa of Nungsa was reconstructed with special references to construction resources of Baekje and adjacent countries of the period. In this study, the construction of underpinning of the stupa was analyzed in comparison with 5-story stupa of Buepryungsa temple in Japan and other domestic relics. Regarding the elevation scheme of the structure, it was compared with the elevation proportion of stupa in the Baekje period. And the analysis brought out the following results. The construction method of Nungsa 5-story and elevation form technique applied in wooden stupa shall be used as a basic indirect resource to prepare restoration plans for Baekje wooden stupa.