The invention provides an automatic pipe shed mounting device. The automatic pipe shed mounting device comprises a pipe shed mounting unit, a ground pipe warehouse and a hanging basket gripper, wherein the pipe shed mounting unit comprises a rotating shaft, a rotating shaft mounting base, a rotating shaft rotating motor, drill rod manipulators and a pipe shed manipulator; the rotating shaft is rotatably connected to the rotating shaft mounting base, and the rotating shaft mounting base is mounted on a propelling mechanism; the rotating shaft rotating motor is used for driving the rotating shaft; the drill rod manipulators are mounted at the two ends of the propelling mechanism correspondingly, and the pipe shed manipulator is mounted on the rotating shaft; the ground pipe warehouse is usedfor storing pipe sheds; and the hanging basket gripper grabs the pipe sheds in the ground pipe warehouse into the pipe shed mounting unit. The invention further provides a pipe shed mounting method.The pipe shed mounting method comprises the steps of pipe shed taking of the ground pipe warehouse, pipe shed putting into a pipe shed unit, pipe shed clamping, pipe shed conveying and the like. According to the automatic pipe shed mounting device and method, drilling and pipe shed mounting can be completed on one device, and the pipe shed mounting efficiency is improved; and pipe shed taking, pipe shed clamping and pipe shed conveying are conducted through a hanging basket arm, the pipe sheds can be automatically connected, and the construction efficiency is improved.