The Sakura Gate of Osaka Castle is an important cultural property located at the main entrance to the castle. Its name is derived from the “Cherry Blossom Horse Field” located in the Ninomaru area of Osaka Castle, built by Toyotomi Hideyoshi, and named after the rows of cherry trees near the gate. The name was retained when the Tokugawa Shogunate rebuilt the castle. The Sakura Gate was built in 1626, but was destroyed by fire in 1868 during the Meiji Restoration. It was later rebuilt by the former army in 1887, and is in its present form. When it was rebuilt, the Koraimon style was adopted and new earthen walls were built on both sides, but they were destroyed by typhoon damage after the war and were restored in 1969. On both sides of the gate are giant stones called “dragon stones” and “tiger stones,” which were said in the Edo period to make the figures of a dragon and a tiger appear when it rains. In addition, there is an earthen bridge in front of Sakura-mon Gate, and excavations have revealed that a gangi-slope and stone stairs once existed. Sakura-mon Gate is considered to be a unique and valuable structure in terms of its historical name, which dates back to the Toyotomi period, and the fact that it is designated as an Important Cultural Property despite its reconstruction in the Meiji period.