1, the nine-gate prefect is mainly responsible for the guard and access control inside and outside the nine gates in the inner city of Beijing (Zhengyangmen, Chongwenmen, Xuanwumen, Andingmen, Deshengmen, Dongzhimen, Xizhimen, Chaoyangmen and Fuchengmen), and is also responsible for night patrol, fire fighting, Garbo's editing and inspection, alcohol prohibition, arrest and prison break. In fact, it is the imperial army of the Qing Dynasty.

2. The Beijing Garrison undertakes the tasks of military security, guard duty, anti-terrorism and stability in Beijing, carries out militia, military service and mobilization, maintains military discipline in the capital, and assists local governments in maintaining social order. The troops stationed in Beijing have great responsibilities and play a role in defending the capital. The outside world calls it "Kingsguard".

Therefore, it can be seen that the rights and functions of these two positions are very similar, and their main responsibilities are to defend the capital, so the nine prefects are equivalent to the current Beijing garrison commander.

Extended data:

The nine gates under the jurisdiction of the nine governors are as follows:

1, Chaoyangmen: grain truck

The grain produced in the south is transported to Beijing and loaded into the city when it arrives in Tongzhou. Chaoyangmen is the only way to enter the city.

2. Chongwenmen: Take a wine cart.

Outside the city is the wine channel. Most of the fine wines of that year were shipped from Zhuozhou, Hebei and other places. It is natural to take the south road when entering Beijing. The wine truck is pushed to Zuo 'anmen in the outer city, and then to Chongwenmen to pay taxes.

3. Zhengyangmen: Take a dragon car.

Zhengyangmen is located in the middle of the inner city south wall, which is dedicated to the emperor. The emperor went out of Zhengyangmen twice a year, once in winter, to worship the Heaven in the Temple of Heaven, and once in shock, to farm in Xiannongtan.

4. Xuanwumen: Take a prison car.

Because the execution ground is located in the food market outside Xuanwu Gate. The prisoner has been examined and approved by the Ministry of Punishment, so please behead him.

5. Fuchengmen: Take a coal car.

Because the Mentougou area in the west of Beijing is a coal-producing area, all the coal used in Beijing is transported from there.

6. Xizhimen: Waterwheel

The doorway of Xizhimen is engraved with ripples of water. In the past, the emperor didn't drink the water in the city, because the water in the city was bitter, so he only drank the water from Yuquan Mountain.

7. Deshengmen: personnel carriers

The north is basaltic according to the stars. Xuanwu is the main swordsman, so he sends his troops to fight and usually goes out of the city from the north gate.

8. Andingmen

Andingmen takes a dung cart because the vicinity of Ditan used to be the main dung field in Beijing.

9. Dongzhimen

In the Qing Dynasty, the timber in the south was often stored outside Dongzhimen, so most of the timber needed in Beijing was transported into Beijing from Dongzhimen, so Dongzhimen was also commonly known as "wooden door".

Baidu Encyclopedia: Commander of the 5th Battalion of the Nine-door Step Army.

Baidu Encyclopedia: Beijing Garrison