The invention discloses a classroom midair noon break bed which comprises a bed tail frame and a bed body. The bed tail frame is arranged at one end of the bed body, the bed body comprises a plurality of splicing units, every two adjacent splicing units are fixedly connected, each splicing unit comprises a first bed leg, a bed frame, a second bed leg and an expansion supporting frame, one end of the bed frame is hinged to the first bed leg, the extension supporting frame is arranged on the first bed leg, the second bed leg is arranged on the extension supporting frame, a bed frame guide rail is arranged on the second bed leg, a first sliding block is rotatably arranged at one end, away from the first bed leg, of the bed frame, and the first sliding block is arranged on the bed frame guide rail in a clamped and sliding mode. The invention relates to the technical field, and particularly provides the classroom midair noon break bed which does not need to move desks and chairs, is more convenient to open and store, can fully utilize the space in a classroom, is simple to operate and saves time.