Busanjinjisung was called Jasungdae, about calling this name Busanjinsun is said to come from meaning main sung(fortress) or motherly love, sung meaning intelligent or magnetic, or building a Jusung on top of the mountain and took it as a pole.
The name Busanjinjisung was called Jasungdae,
from which also tells us that the Busan Jinseong is called the Majeongdae, because it refers to the nature of Majeongdae as the nature or maternity. According to the records, the fortress was built to allow ships to directly next to the fortress as it was built following around the mountain of east and west and bringing along the mountains of the east and west, and the trench was about 20m wide. The current state of fortress came from restoration work done from July 8, 1974 to February 25, 1975 by the Busan city with newly built East gate, West gate, and a pole. And East gate was called Jindong gate, West gate was called Geumrukwon, and Jasundaewe’s pole was called Jinnamdae and hung the plaque.