Herein, Korla fragrant pear (KFP) was subjected to ultrasonication (UA), microwave (MA), high-pressure humid heat (HPHH), and composite enzyme hydrolysis (CEH) pretreatments before the extraction of soluble dietary fiber. The yield, structural characteristics, and functional properties of SDF obtained after the different pretreatments were compared. All the aforementioned pretreatment methods increased the yield of SDF and decreased that of insoluble dietary fiber. The highest yield of SDF was obtained after the HPHH pretreatment (10.11 %). The SDF obtained after pretreatment exhibited loose, cracked, and porous structures, decreased crystallinity and molecular weight (M