Donghe Township has an old name of Fafukod (馬武窟), which means "fishing by net" in Amis language. Under Qing dynasty rule, the township was under jurisdiction of Pi-lam Subprefecture (卑南廳) and "Taitung direct-controlled state" (臺東直隸州) jurisdiction.
In 1920, during the period of Japanese rule, Toran local office (都蘭區役場) was set up. In 1937, it was changed to Toran Village (都蘭庄), under Shinkō District (新港郡), Taitō Prefecture. The name "Donghe Township" was established after World War II and is currently used.
This township is located on the east side of coastal mountain range. It includes 60% of the hillside onshore, divided into coastal and basin areas with gradual upland slopes merging into relatively flat sea stage plains, the area of major development. Basin streams are mainly north-south because of the difficult terrain. Climate is tropical monsoon climate.
- Doulan Village
- Xingchang Village
- Longchang Village
- Tunghe Village
- Taiyuan Village
- Beiyuan Village
- Shangde Village
Junior High Schools
- Donghe Elementary School, Dongher Township, Taiwan East County
- Dulan Elementary School, Donghe Township, Taitung County
- Sinlong School,Donghe Township, Taitung County
- Taiyuan Elementary School, Donghe Township, Taitung County
- "Jinzun". Tour.taitung.gov.tw. Retrieved 2014-05-14.
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- 東河鄉公所 (Chinese)