The invention discloses a dismountable musical instrument Bawu with high intonation adjustability. The musical instrument Bawu comprises a Bawu pipe body and a sound mouth that is in sliding connection with the Bawu pipe body; and the connection part between the sound mouth and the Bawu pipe body is sealed. Sound holes are formed in the Bawu pipe body; and decoration heads are installed at the two ends of the Bawu pipe body. According to the dismountable musical instrument Bawu and the manufacturing process thereof, compared with the prior art, the musical instrument Bawu has the following beneficial effects: the musical instrument Bawu is made of a blood wood material, so that workability of the density and dimension of the Bawu can be guaranteed and the playing sensitivity can be improved and the playing difficulty of the player is reduced; once any intonation deviation occurs, the pipe body length is adjusted by moving the tone adjusting port, and after fine toning, the accurate tone tuning effect is realized; and dismounting becomes convenient and the process becomes simple.