PURPOSE: To reduce the force acting to the opposit direction of the separation of sheet in the device to feed each one sheet of the laminatingly stacked recording paper of the rotary drum type recording system, etc., by lifting the sucking tube itself by negative pressure as well as sucking the paper with the negative pressure.

CONSTITUTION: When the adsorbing face 6 of the sucking tube 2 contacts with the upper end of the laminatingly stacked recording paper, the adsorption hole 7 prepared to the adsorption surface 6 is closed with the recording paper, and the air in the sucking chamber 5 of the sucking tube 2 is sucked by air sucking means through the air passage 4 making it to negative pressure and the record paper is adsorbed to the adsorption hole 7. In this operation, the sucking tube 2 is lifted by this negative pressure, promoting the segregation and sucking of the recording paper, to make the time the weight of the sucking tube 2 acts on the stacked recording paper to be a very small time of the sucking hole 7 is closed, making the force acting to the opposit direction to segregation to be as small as possible. Therefore, the recording paper is allowed to be fed one by one at the constant separation force without relation to the quantity of the stacked paper.