Perhaps it was this "land of geomantic omen" that attracted the attention of the rulers at that time. After being determined as the seat of state administration, the size and specifications of Qiongshan City (now Fucheng), which was originally only a county administration, are far from meeting its important tasks as the political, economic and cultural center of Qiongzhou. People began to build the wall of the original rammed earth city in Qiongshan City (now Fucheng), and then it was expanded on a large scale, and the wall was expanded to 65,438. At the same time, a river was dug at the south gate of Qiongshan City (now Fucheng) as a moat of Qiongzhou City (now Fucheng). This is the Hekou River, which is now the Meishe River. Some foreign ships can cross the river from the port to the gate.
Of course, the position of the state government should not be vague. At that time, the office of the state government (now Qiongshan Middle School and Qiongshan Government Dormitory on Wen Zhuang Road) was selected with high terrain, broad vision and gurgling streams not far away. In its southeast, there is a lake called Nanhu, which looks like a precious mirror. It is surrounded by three small peaks, Bao Er, Longwen and Santai. It looks like a mountain top, and the government office is located on it.
In the Yuan Dynasty, Meishe River meandered for ten miles, running through Nandu River, and Qiongzhou City became the center of traffic. Ships, large and small, come and go in this river, and things such as grain, oil, sugar and wood can pass through the pier at the south gate of Qiongzhou City (now Fucheng City). Prosperity and noise seem to flow into the ancient city with the stream, becoming the seat of Qiongzhou Road Comfort Department, Ganning Military and Civilian Comfort Department and Ganning Anfu Department in Yuan Dynasty.
Sun An, assistant minister of the Ministry of War, took 1000 officers and men to Qiongdao and Hongwu for three years (1370). The appeasement department of Ganning was changed to Qiongzhou Prefecture, and Qiongshan County (Qiongzhou City) was placed under the jurisdiction of Hainan, which was originally called "county and city". Fucheng once again opened the city wall and expanded the city. Nine years later, Fucheng (also known as the county seat) was basically formed, with a wall of 1.253 feet, a height of 2.7 feet and a thickness of 2.8 feet, a stream of 1.843, 57 warehouses and gates on the east, south and west. The East Gate was originally Chaoyangmen, and later changed to Yongtai Gate. There is no north gate in the county, but a wall building called Wanghailou was built, and a moat was built around it.
Why there is no north gate in Fucheng is not recorded in historical materials. There is speculation that when building the city wall, it is not conducive to defense, considering that the north gate is ominous and the north faces the sea. In the east, west, north and south corners of the city, a watchtower will be built to patrol and guard. In the Qiongshan earthquake, most of the city walls and buildings collapsed and were later rebuilt. In the Qing Dynasty, the plan of Fucheng was oval, and most of the city walls were demolished in 1983. There are Leiqiong Military Command, Qiongzhou Government Department, Prefect Academy Administration Department, Qiongzhou Town General Staff Department, Qiongshan County Department and other units at all levels in the city center, and buildings such as Yuhuang Temple, Tianning Temple, Sangong Temple, Gong Xue County and Qiongtai Academy. There are "Seven Wells, Eight Alleys and Thirteen Streets" in the city, and there are many Jinshi Square, Juren Square, Jie Zhen Archway and the hills of Jinhua Village.
From the Song Dynasty to the Republic of China, Fucheng has been the political and military core of Hainan for thousands of years.