In the 1960s, the musicians of the Xinjiang Uygur Autonomous Region Song and Dance Troupe cooperated with the Uyghur musical instrument makers of the Urumqi Yidi Boke Musical Instrument Factory to design and develop the bass Aijie.

The appearance is the same as that of the midrange Aijie, but the resonance box is significantly enlarged. The spherical body is made of 32 pieces of walnut wood slats and glued together. , in the longitudinal section covered with python skin endothelial membrane.

The headstock and stem are made of a piece of colored wood, 68 cm long. The headstock is cylindrical, the top is spherical, the bottom is opened with a string groove, four pegs are placed horizontally on both sides, and the shank is spherical. The piano bar is a semi-circular cylindrical body, flat at the front and round at the back, narrow at the top and wide at the bottom, with a mahogany fretboard glued on the front. The bottom base of the piano case is longer. Use cello strings and use a cello bow. Its playing posture and method are the same as the cello, and it is used as a bass-pulled stringed instrument in the Xinjiang Uygur Autonomous Region ethnic band.