Wide-range Hulusi was developed on the basis of the traditional seven-hole Hulusi by teacher Li Kai from the No. 4 Middle School in Wuhe County, Anhui Province, which took more than three years to reform and develop, and has successively obtained utility model Patents and invention patents (this patent is included in the 2007-2008 edition of the "Chinese Musical Instruments Yearbook" edited by the China Musical Instruments Association. The invention patent number is ZL200610044169.2, and the protection period is twenty years).