A powder output device, including powder storage device (1), powder dispersion device (2), powder distributor (3), and a power device (4) connected with powder dispersion device (2) and powder distributor (3). The powder distributor (3) includes a rotatory accessory (31), a main shaft (32), a shell (33), an output groove (35), and a feed inlet (39). The main shaft (32) is positioned horizontally. The rotatory accessory (31) sleeves on the main shaft (32) and is in the shell (33). At least one recess (312) corresponding to the output groove (35) and the feed inlet (39) is provided on the rotatory accessory (31).