China's largest peninsula was once physically connected to the Korean Peninsula millions of years ago.

Countries & Cities · Published 30 September 2026 Swipe more like this →

In short: Jutting into the Bohai and Yellow Seas, the Shandong Peninsula is a region of deep historical and economic significance. Once part of a continuous landmass with Korea, this hilly, resource-rich territory has evolved from an ancient granary into one of China's most affluent and industrially developed coastal hubs.

Geologically, the Shandong Peninsula shares an ancient lineage with the Korean and Liaodong peninsulas. Approximately 27 million years ago, tectonic shifts began separating these landmasses, eventually creating the Yellow Sea. Today, the region covers 73,000 square kilometers, characterized by a hilly landscape that reaches its highest point at Mount Lao, which stands at 1,132 meters. Its climate is relatively mild, benefiting from maritime influences that support the cultivation of diverse crops, including apples, grapes, and pears.

Human history in the area dates back to the Neolithic period, when the Dongyi people established settlements. By the 8th century BC, the region had already developed sophisticated salt and fishing industries. Over subsequent dynasties, it became a vital economic center, earning the title 'granary of the East' during the Han dynasty. The peninsula's strategic value later drew international attention during the late 19th century, leading to foreign occupations of key ports like Qingdao and Weihaiwei by Germany and the United Kingdom.

The 20th century brought significant political upheaval, most notably the 'Shandong Problem' following the 1919 Treaty of Versailles, which transferred German-held territories to Japan rather than returning them to China. This sparked the May Fourth Movement, a pivotal moment in modern Chinese history. Since 1949, the region has transformed into a powerhouse for manufacturing and trade. Today, it maintains strong ties with South Korea, hosting over 200,000 Korean residents and serving as a major hub for international commerce and technological development.

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