The utility model discloses a rat model for pediatric obstructive sleep apnea-hypopnea syndrome (OSAHS) intermittent hypoxia, which belongs to an experimental device in the field of medical experiments and solves the defect of the lack of the rat model for the pediatric OSAHS intermittent hypoxia in the prior art. The rat model mainly comprises a box body, wherein the box body is internally provided with a partition A, a partition B, a door A and a door B, an inner chamber of the box body is divided into a hypoxia cabin, a transitional cabin and an animal cabin, the animal cabin is communicated with atmosphere, the door A and the door B can be opened through vertical movement, the box body is internally provided with an animal feed box which can move left and right in the boxy body, and the hypoxia cabin is provided with a nitrogen gas valve and an oxygen concentration sensing device. The rat model is mainly used in animal experiments in the field of medical science.