Gyeongju Cheonmachong is a drawing of a horse (Cheonma) drawn on a jangni (saddle flap) hanging down on both sides of a horse`s saddle. It is 75cm wide, 53cm long, and about 6mm thick, and was discovered in 1973 in the Ancient Tomb No. 155 (Cheonmachong) in Hwangnam-dong, Gyeongju.The painting board on which Cheonmado is drawn is made by overlapping several layers of birch bark, quilting it with fine bark on top, and then applying leather to the edge. In the center, a heavenly horse is drawn in white, and the border is decorated with vine patterns in white, red, brown, and black. The heavenly horse is seen running through the sky with its tail upright, with ring-shaped protrusions on the front and back of its legs, and the appearance of its tongue sticking out its mouth shows the energy of a god. This makes it possible to guess that the white heavenly horse was the god of animals and had the role of carrying the dead to the heavenly world. The figure of the Cheonma (heavenly horse) in the Cheonmado and the vine pattern on the frame of Cheonmado, drawn in the 5th and 6th centuries of the Shilla Dynasty, are in the same style as the Goguryeo Muyoungchong Tomb or the ancient tomb murals, and it is a painting that shows that Silla painting was influenced by Goguryeo. Also, as a Silla painting, it is almost the only work that has survived to the present day, and its value is great.