The invention relates to the technical field of textile, in particular to a method for improving fiber textile product quality. The method comprises the steps of S1-S3, and a needling machine adoptedby the method comprises a supporting mechanism, a needling mechanism, a gear box, a feeding mechanism and a discharging mechanism, and further comprises a dust removal mechanism, a dust collecting mechanism and a linkage mechanism. The method for improving the fiber textile product quality has the advantages that the linkage mechanism can vertically move synchronously with the needling mechanism,thereby driving a driving gear to rotate through a toothed plate, so that a transmission gear and a rotary disk rotate synchronously, a hairbrush can continuously scrap a needle body to scrap off dust, cotton wools, thread residues and other waste adhered on the surface of the needle body, thereby achieving the automatic cleaning of the needle body; when the needling mechanism vertically moves, the rotary disk can be driven to rotate clockwise and anticlockwise, so that the hairbrush can clean the needle body from two directions; the dust collecting mechanism can collect the removed waste onto a filter plate, thereby avoiding the waste from drifting in air or falling onto a product, so that the collection and cleaning of the waste are more convenient and fast.