![](http://www.ecns.cn/hd/2023/12/08/6b23081935674afa86f9871814dcfd0d.jpg)
Chinese researchers check the operation of world's first 20-story unmanned vertical veggie farm in Chengdu, southwest China's Sichuan Province, Dec. 7, 2023. (Photo: China News Service/An Yuan)
The world’s tallest unmanned vertical farm has entered operation in Chengdu..
![](http://www.ecns.cn/hd/2023/12/08/4c8cd9c8db3f4b71a25b6c4bef47b59a.jpg)
Researchers check the growth of rice at the world's first 20-story unmanned vertical veggie farm in Chengdu, southwest China's Sichuan Province, Dec. 7, 2023. (Photo: China News Service/An Yuan)
![](http://www.ecns.cn/hd/2023/12/08/ba1bfa390e0c4c07afcad7f10878ef90.jpg)
An interior view of the world's first 20-story unmanned vertical veggie farm in Chengdu, southwest China's Sichuan Province, Dec. 7, 2023. (Photo: China News Service/An Yuan)
![](http://www.ecns.cn/hd/2023/12/08/a5cb22ef407d42d5a68d897f46abae2a.jpg)
A researcher checks the growth of wheat at the world's first 20-story unmanned vertical veggie farm in Chengdu, southwest China's Sichuan Province, Dec. 7, 2023. (Photo: China News Service/An Yuan)
![](http://www.ecns.cn/hd/2023/12/08/481b9ec7073e4be9a53a84d8bc750cff.jpg)
Lettuce grows at the world's first 20-story unmanned vertical veggie farm in Chengdu, southwest China's Sichuan Province, Dec. 7, 2023. (Photo: China News Service/An Yuan)
![](http://www.ecns.cn/hd/2023/12/08/c0d4299610e44351add65d5a2a6b1ab2.jpg)
Researchers check the growth of wheat at the world's first 20-story unmanned vertical veggie farm in Chengdu, southwest China's Sichuan Province, Dec. 7, 2023. (Photo: China News Service/An Yuan)
![](http://www.ecns.cn/hd/2023/12/08/214aabd9bf4a4da8b3255e3ddce59539.jpg)
A researcher checks the growth of rice at the world's first 20-story unmanned vertical veggie farm in Chengdu, southwest China's Sichuan Province, Dec. 7, 2023. (Photo: China News Service/An Yuan)
![](http://www.ecns.cn/hd/2023/12/08/31d03fd942194f7ea189b14e261efa96.jpg)
A researcher checks the growth of rice at the world's first 20-story unmanned vertical veggie farm in Chengdu, southwest China's Sichuan Province, Dec. 7, 2023. (Photo: China News Service/An Yuan)
![](http://www.ecns.cn/hd/2023/12/08/fdfac6e254a04a2c8b7dde1c3c877c12.jpg)
Chinese researchers check the operation of world's first 20-story unmanned vertical veggie farm in Chengdu, southwest China's Sichuan Province, Dec. 7, 2023. (Photo: China News Service/An Yuan)
![](http://www.ecns.cn/hd/2023/12/08/e03bf44644234f8482d4058022d20ca1.jpg)
An exterior view of the world's first 20-story unmanned vertical veggie farm in Chengdu, southwest China's Sichuan Province, Dec. 7, 2023. (Photo: China News Service/An Yuan)