The invention relates to an intelligent poultry egg incubator based on Internet of Things. The intelligent poultry egg incubator comprises a box body and an air outlet pipe which is arranged above the box body, wherein the box body is internally provided with a plurality of incubation units, a supporting plate, two brackets, a heating device and a plurality of air inlets from top to bottom; each incubation unit comprises an incubation disc and a horizontal adjusting device; the intelligent poultry egg incubator based on Internet of Things realizes temperature adjustment through a temperature control circuit in the heating device; the switching-on and switching-off of a relay switch can be controlled by utilizing powering-on and powering-off of a relay coil, so that the conversion of high and low electrical levels is performed at an output end of an integrated circuit, and furthermore, the working and stopping of the heating are controlled, and the inner part of the box body is controlled to be in a suitable incubation temperature range and the success rate of incubation is improved; moreover, a motor in the horizontal adjusting device is used for controlling the rotation of a supporting rod, the height of a sleeve is changed and the incubation discs are located in a horizontal position all the time, so that the incubation condition is improved and the practicability of the device is improved.