| Conflict: | Battle of Sanfeng Mountain |
| Partof: | the Mongol–Jin War |
| Caption: | All significant conquests and movements of Genghis Khan. Eastern campaign routes show the Mongol conquest of the Jin dynasty. |
| Date: | February 9, 1232 |
| Place: | Sanfeng Mountain, Jin China (southwest of present-day Yuzhou, Henan Province, China) |
| Result: | Mongol victory |
| Territorial Changes: | North China added to the Mongol Empire |
| Combatant1: | Mongol Empire |
| Combatant2: | Jin dynasty |
| Commander1: | Subutai |
| Commander2: | Wanyan Heda (POW) |
| Strength1: | 50,000 horsemen[1] |
| Strength2: | 130,000 infantry 20,000 horsemen |
| Casualties1: | light |
| Casualties2: | Very heavy |
The Battle of Sanfengshan, literally the Battle of the Three-Peak Mountain, was a major decisive battle fought between the Mongol Empire and Jin China during the first stage of the Mongol conquest of the Jin dynasty. The battle was fought in 9 February 1232 at the Sanfeng Mountain which is in the southwest of what is now the city Yuzhou in Henan Province, China. The battle resulted with a crushing Mongol victory, successfully planned and orchestrated by their general Subutai, and successfully wiped out the last field army of the Jin Dynasty, therefore sealing its fate of falling to the Mongol Empire.