This paper presents the results of research in which Baekje plate data were collected, its properties analyzed, and typological changes over time were identified. In addition, the origin and appearance of Baekje plates were identified through comparisons with examples from neighboring countries, and the characteristics of plates within Baekje society were identified through an examination of the excavated context. Firstly, an analysis of the properties of plates revealed that the base clay, presence of a foot, and plate depth were the properties demonstrating temporal characteristics. Based on this, the plates were classified into six types by combining the corresponding properties. In addition, by comparing sequence when possible (for both the plates and associated artifacts), four temporal stages were established. Stage I was when the plate first appeared, and only the ‘Ga 1-type’, a footless plate (rounded-bottom and flat bottom) with a type I depth and made of fine-grained and coarsegrained base clay, was identified. In Stage II, plates of the ‘Ga 1-type’ made of coarsegrained and medium-grained base clay continued to be manufactured, as in Stage I. However, unlike Stage I, footed plates (B type) were newly identified, and plates with a type II depth (lower than the type I depth) were also manufactured. In Stage III the ‘Ga 1-type’ plate gradually disappeared, and as the ‘Ga 2-type’ and ‘Na 1-type’ plates continued to be used, a new ‘Ga 3-type’ appeared. The newly introduced ‘Ga 3-type’ at this time was a plate made using fine-grained base clay, unlike previous examples. In Stage IV, the existing ‘Ga 2-type’, ‘Ga 3-type’, and ‘Na 1-type’ continued to be used, and the new ‘Ga 4-type’ and ‘Na 2-type’ plates, which were different from the previous examples, appeared. Very carefully selected base clay was used for the ‘Ga 4-type’ and ‘Na 2-type’ plates, which were manufactured using the throwing technique, and the depth of the plates became shallower. As a result of the examinination of the appearance and characteristics of Baekje plates, it was established that plates appeared from Baekje’s Hanseong period and were partially influenced by the technical aspects of Goguryeo pottery production and Chinese culture. In addition, plates were used as ritual equipment in Baekje, and it is unlikely that they were universally used as containers in everyday life.