The invention relates to the field of agricultural machinery, in particular to an automatic bagging, feeding and discharging all-in-one machine for edible mushrooms. The machine includes a machine body, a mushroom strain feeding hopper and a push cylinder, and further includes a rotating device, a bag feeding device and a bagging device. The rotating device includes a supporting frame, a rotating motor, a rotating disk and a rotating shaft; the bag feeding device includes a bag feeding cylinder, a cylinder feeding device, a bag taking device, a bag pulling device, a bag opening device and a bag feeding air storage tank; the bagging device includes a pair of bagging air cylinders, a bagging supporting frame, a bagging cylinder, a bagging rotating base, a feeding plate, a feeding air cylinder, a rotating cylinder air cylinder and a chute. The all-in-one machine can achieve automatic bag taking, automatic bagging and automatic unloading, can continuously and uninterruptedly work without manual operation, and is simple in structure and high in practicability.