Throughout the period from 300 BC to 700 AD, significant changes took place in the life of population of Japanese Archipelago and Korean Peninsula, which were reflected by the burial rite. Specifically, the practice of using wood in mounded burials became particularly common. Such numerous instances in both regions are analyzed, the placement and several elements of wooden structures, accompanying artifacts, sorts of wood etc. are described in this work. The changes in burial rite practiced in ancient Japan can be seen. During the Yayoi period (300 BC to 300 AD), jar burials gave way to those with wooden structures in Western Japan regions closest to the mainland. It’s established that traditions co-occurred with innovations, as seen from the fact that such structures were coated with clay. Further development took place during the Kofun period (300–538 AD), when first log coffins appeared, then composite coffins, and eventually stone coffins. Similar burial practice existed in Korea earlier than in Japan, the peak of this tradition coinciding with the period of Three Kingdoms (200–600 AD). The comparison of the ways the tradition evolved in both regions suggests that it had originated on the mainland, was introduced to Japan by successive immigration waves, and was then adapted to local conditions.