Gengma Dai and Va Autonomous County (simplified Chinese: 耿马傣族佤族自治县; traditional Chinese: 耿馬傣族佤族自治縣; pinyin: Gěngmǎ Dǎizú Wǎzú Zìzhìxiàn; Tai Nüa: ᥛᥫᥒᥰ ᥐᥪᥒ ᥛᥣᥳ; Awa: gaeng mīex) is located in Lincang City, in the west of Yunnan province, China.

The name of the Gengma come from the Pali word "Sinthunath" meaning a place where people follow white horses.

and was written on the front cover "History of Burma" said Kung Ma The main ethnic groups in the Gengma chieftains are Tai and Wa.

[2] The origin name is Sinthunath meaning the site person find the white horse everyone called Mong Kying Keng Hkam meaning the site located of jewelry and golden the ethnic is Tai and Wa, Tai people emigrated from Mong Mao Long since 14 century they took the tradition and culture from Mong Mao come to here and the Wa ethnic they live on a high mountain and have there personal language.

[3] There are 1,004 Jingpo people located in the following five villages of Gengma County.