Yingjiang County (simplified Chinese: 盈江县; traditional Chinese: 盈江縣; pinyin: Yíngjiāng Xiàn; Tai Nüa: ᥔᥦᥢᥱ ᥛᥫᥒᥰ ᥘᥣᥲ; Jingpho: Yinkyang Ginwang; Thai: เมืองหล้า) is a county in Dehong Prefecture, Yunnan province, China, bordering Burma's Kachin State to the west.

Yingjiang county has a border of 214.6 km (133.3 mi) with Kachin State, Myanmar in the west.

During the Eastern Han, the Shu Han, the Western Jin, and the Eastern Jin, it was governed by Ailao county (哀牢縣) (Āiláo xiàn), Yongchang Prefecture (永昌郡) (Yǒngchāng jùn), and then by Xicheng county (西城縣) (Xīchéng xiàn) from the Southern Qi dynasty in 479.

China was very unstable during the Northern and Southern Dynasties, and the central governments had no force to control Yunnan.

The Cuan family took the strategy by which they recognized the nominal sovereignty of the central governments while remaining themselves as the real local rulers.