A banknote temporary storage device, comprising: a pair of coiling tapes configured to clamp banknotes to be temporarily stored; a large coiling block, wherein each of the pair of coiling tapes has one end fixed on the large coiling block, and the large coiling block is configured to temporarily store the banknotes by accommodating the coiling tapes which clamp the banknotes to be temporarily stored; an upper coiling block assembly and a lower coiling block assembly, wherein each of the pair of coiling tapes has another end, and the another ends of the pair of coiling tapes are respectively fixed to the upper coiling block assembly and the lower coiling block assembly, and the upper coiling block assembly and the lower coiling block assembly are configured to release or wind the coiling tapes simultaneously according to a requirement of temporarily storing or discharging the banknotes; and a banknote inlet/outlet comprising a pair of clamping rollers (51, 52) engaging with each other, wherein the pair of clamping rollers (51, 52) engaging with each other comprise an upper clamping roller arranged on an upper rotating shaft and a lower clamping roller arranged on a lower rotating shaft, and wherein the large coiling block is provided with a lower passage guide plate, the lower passage guide plate has one end rotatably arranged on the lower rotating shaft and another end being drew by a spring to form a relatively free end elastically urged towards the large coiling block, a tail portion of the free end is an arc-shaped portion concentric with the large coiling block, and an angle by which the arc-shaped portion surrounds the large coiling block ranges from 40 degrees to 50 degrees, characterized by a rolling wheel is provided at a middle of the lower passage guide plate by a first rotating shaft, and the rolling wheel is in rolling contact with an outer surface of the large coiling block or an outer surface of a banknote wound on the large coiling block, and a vane wheel, configured to flap the banknotes, is provided at the free end of the lower passage plate by a second rotating shaft, and the first rotating shaft and the second rotating shaft are configured to synchronously rotate by means of a synchronous belt. a pair of coiling tapes configured to clamp banknotes to be temporarily stored; a large coiling block, wherein each of the pair of coiling tapes has one end fixed on the large coiling block, and the large coiling block is configured to temporarily store the banknotes by accommodating the coiling tapes which clamp the banknotes to be temporarily stored; an upper coiling block assembly and a lower coiling block assembly, wherein each of the pair of coiling tapes has another end, and the another ends of the pair of coiling tapes are respectively fixed to the upper coiling block assembly and the lower coiling block assembly, and the upper coiling block assembly and the lower coiling block assembly are configured to release or wind the coiling tapes simultaneously according to a requirement of temporarily storing or discharging the banknotes; and a banknote inlet/outlet comprising a pair of clamping rollers (51, 52) engaging with each other, wherein the pair of clamping rollers (51, 52) engaging with each other comprise an upper clamping roller arranged on an upper rotating shaft and a lower clamping roller arranged on a lower rotating shaft, and wherein the large coiling block is provided with a lower passage guide plate, the lower passage guide plate has one end rotatably arranged on the lower rotating shaft and another end being drew by a spring to form a relatively free end elastically urged towards the large coiling block, a tail portion of the free end is an arc-shaped portion concentric with the large coiling block, and an angle by which the arc-shaped portion surrounds the large coiling block ranges from 40 degrees to 50 degrees, characterized by a rolling wheel is provided at a middle of the lower passage guide plate by a first rotating shaft, and the rolling wheel is in rolling contact with an outer surface of the large coiling block or an outer surface of a banknote wound on the large coiling block, and a vane wheel, configured to flap the banknotes, is provided at the free end of the lower passage plate by a second rotating shaft, and the first rotating shaft and the second rotating shaft are configured to synchronously rotate by means of a synchronous belt.