The invention discloses an incubator inside turn-over device for a newborn baby. The incubator inside turn-over device comprises an incubator and a mattress, wherein the mattress is arranged in the incubator, a rotating shaft is arranged at one side of the mattress along an axial direction and is inserted in the mattress, the mattress is divided into a headrest, a back cushion and a leg rest alongthe axial direction, and the back cushion is fixedly arranged in the incubator. The incubator inside turn-over device further comprises lifting devices, wherein the lifting devices are separately arranged below the headrest and the leg rest, sliding grooves are separately formed in bottoms of the headrest and the leg rest and are vertical to the rotating shaft, each lifting device comprises an air cylinder and a link, the air cylinders are fixedly arranged at the bottom of the incubator, one end of each link is connected with the corresponding air cylinder, and the other end of each link is in slip connection with the corresponding sliding groove. The incubator inside turn-over device for the newborn baby can assist medical care personnel turning over the baby and provide a support, so that the working strength of the medical care personnel is alleviated, and physical force is saved.