The invention discloses a garbage bag giving robot. The garbage bag giving robot comprises a box body, a box cover, a slide plate, a slide plate electric cylinder, a face recognition device, a switch device and the like, wherein one side of the box cover is hinged and installed on the upper part of the box body, and the slide plate is slidably installed on a slide groove; one end part of a piston rod of the slide plate electric cylinder is installed on the slide plate; a lifting plate is vertically installed at the bottom of the box body; a lifting installation block is slidably installed on the lifting plate; a cylinder block of a lifting electric cylinder is vertically installed at the top of the lifting plate, and one end part of a piston of the lifting electric cylinder is installed on the lifting installation block; a transversal support is horizontally installed on the lifting installation block, and a rotary motor is installed on one end part of the transversal support; a telescopic barrel is installed on a main shaft of the rotary motor; and a telescopic rod is slidably installed in the telescopic barrel, and a suction disc is installed on one end part of the telescopic rod. According to the garbage bag giving robot disclosed by the invention, a purpose of conveniently, fast and automatically giving garbage bags is realized through the arrangements of the lifting electric cylinder and the powerful suction disc. The garbage bag giving robot disclosed by the invention is applicable to various public places, and is used for automatically providing the garbage bags to people needing to use the garbage bags.