Mail item feed device 10 includes a mail feeder 310 for feeding to remain erected with the mail to 600 on the feed belt 311 in accordance with the present invention; Suction means 324 between the drive roller 321 and driven roller 323 that power is transmitted from the suction belt 322 is provided, located in the best end of the feed belt 311 through the intake means 324 suction conveying part 320 to suck the mail 601 that the vacuum transfer was adsorbed to the adsorption belt 323; Suction takes over the mail item being conveyed by the conveyance portion (320) engaging the pair of which is installed at the rear end of the suction conveyance portion 320, so as to fit to ask transfer from either side rollers (371, 372); And mail feeder 310, a suction transport unit controller 200 for controlling the driving of 320, and the engaging roller (371, 372); including characterized in that formed. According to the invention it is possible to supply the mail to the sheet via a vacuum suction method. At this time, by the reason which will adversely affect the sheet feed of the postal matters penetrate through the sensor and to eliminate it as a feedback signal, it is possible to prevent an error in or failure of the automated mail handling automation equipment.