Dongdongku (pinyin: dōng dōng kuī), also known as early ancient de, dumbli, Tujia single-reed gas-sounding musical instrument, popular in Hunan Province, Xiangxi Tujia and Miao Autonomous Prefecture.

The body of the dong dong ku is made of bamboo, and it is mostly made of thin bamboo tubes with bamboo joints at the beginning. The length and thickness of the tube vary. Generally, the length of the tube is 15 cm to 20 cm, and the inner diameter of the tail end is 0.8 cm to 1 cm. Thin the front tube wall of the head end, and at 1 cm from the bamboo joint, use a sharp knife to carve a bamboo reed. connected with the reed tongue facing down. The outer skin of the tube wall is flattened on the front of the tube body, three or four square sound holes are opened at the lower part, and a sound hole is opened near the end.

The sound of dong dong ku is soft and rich. Can be used solo or in ensemble, often two together. Mainly there are playing techniques such as percussion, appoggiance and vibrato.