Xiadagai Village is an administrative village under the jurisdiction of Qinglang Township, Heishui County, Aba Prefecture, Sichuan Province. The urban and rural classification code is 220, which means it is a village. The zoning code is 513228213210, and the first 6 digits of the resident ID number are 513228. The postal code is 623500, the long-distance area code is 0837, and the license plate number is Sichuan U. Lower Dagai Village is adjacent to Shangdagai Village, Eduo Village, Rigelao Village, Bazi Village, Zhier Village, Renentang Village, Nawo Village, Zhuzi Village, Erniuo Village and Kuqa Village.
Near Dagai Village, there are tourist attractions such as Naizigou Cailin Park Tourist Area, Dagu Iceberg, Yangrong·Had Tibetan Village, Sergu Tibetan Village, Songpinggou Scenic Area, and Sewan Tibetan Fragrance. Pigs, Heishui County walnuts, Heishui Phoenix Tail Chicken, Heishui Honey, Heishui Butter Tea and other specialties.