Provided are a banknote feeding device, a cash recycling apparatus, and a banknote feeding method. The banknote feeding device includes: a frame (200), a first banknote kicking roller (300), a second banknote kicking roller (400), a banknote separating roller (500), a banknote blocking portion (600), and a banknote supporting member (700). The first banknote kicking roller (300), the second banknote kicking roller (400), the banknote separating roller (500), the banknote blocking portion (600), and the banknote supporting member (700) are disposed on the frame (200). The frame (200) includes a support portion (210) and a reference portion (220) which are disposed at an included angle. The support portion (210) is configured to support banknotes, and a banknote inlet (230) is formed between the reference portion (220) and the support portion (210). The first banknote kicking roller (300), the second banknote kicking roller (400), the banknote inlet (230), and the banknote separating roller (500) are arranged in sequence in a banknote feeding direction. The banknote supporting member (700) is movably connected to the frame (200), is movable relative to the frame (200), and has a working position and an avoidance position. When the banknote supporting member (700) is in the working position, the first banknote kicking roller (300) is configured to drive the banknote to move along the banknote supporting member (700) toward the reference portion (220), to align banknotes along the reference portion (220). When the banknote supporting member (700) is in the avoidance position, the first banknote kicking roller (300) and the second banknote kicking roller (400) are capable of jointly driving banknotes to enter a space between the banknote separating roller (500) and the banknote blocking portion (600) via the banknote inlet (230).