|This study investigates the Hansung Baekje`s tea culture associated small mortar, named dahwak, that was excavated in Mongchontoseong. Baekje was one of the countries that actively accept the advanced Chinese academic and cultural trend in the era of ``three dynasties`` in Korean peninsula. Thus, it is generally considered that the Chinese tea culture was introduced in Baekje at that time. It was popular to have Byeongcha in the era of Namcho in China. Because dahwak is an essential tool for Byongcha to grind tea leaf into flour, it is assumed that 9 dahwaks that were excavated in Pungnabtoseong and Mongchontoseong were imported from Nancho to Baekje. In 2009, researchers found same type of dahwaks to those excavated in Pungnabtoseong when they investigated the historic cite which was a place to manufacture the stone implements in Namcho dynasty and located in Choga mountain near Sangbang area in Namkyong city. This finding suggests that when Baekje accepted the tea culture of Namcho, they also imported necessary tools for making tea. In addition to dahwaks, celadon is an important evidence revealing the tea culture of Baekje. In particular, Cheongjaeumgakyonpanmunwan(靑磁陰陽刻蓮瓣文碗) that was a container for tea was excavated from the investigation of Pungnabtoseong in 2008. Meanwhile, in the historic sites of United Shila dynasty, Wangkyong, many of Chongjawans and small mortars were found. Based on these findings, we can conclude that Chinese tea culture was introduced to Hansung Baekje dynasty.