The invention discloses an intelligent bill filing device. The intelligent bill filing device comprises a shell (1), a central control computer (2), a first conveying wheel set (3), a second conveyingwheel set (4), a high-precision camera (5), a low-precision camera (6), a bill inlet (7), a bill outlet (8), a first guide plate (9), a second guide plate (10), and a flattening device (11). The novel bill filing device is simple in structure, low in cost, and suitable for use by all small and medium-sized enterprises and even household of individual business compared with the existing devices, and has a bill flattening part, thereby improving the bill filing efficiency and overcoming the defect that uneven bills cannot be automatically archived.