Indo-China Peninsula belongs to tropical monsoon climate, with large annual precipitation and many rivers. The mountains and rivers in the northern part of Indo-China Peninsula are staggered in a columnar distribution, and rivers flow through high mountains and canyons, with large drop and rich water energy.

The south of Indochina Peninsula is a plain area with stable rivers and developed shipping. Affected by the climate, the river has a large amount of water, good waterway conditions and developed shipping.