The invention discloses a medical automatic regulating device for head temperature. A control shell of the medical automatic regulating device disclosed by the invention is provided with a data power interface, a refrigeration key, a heating key, a function selection key and a liquid crystal display; a control circuit is arranged in in the control shell; one ends of a power line and a main data line are connected with the data power interface of the control shell; the other ends of the power line and the main data line are respectively connected with a fan and refrigeration plates in a three-dimensional flexible main body; the three-dimensional flexible main body is of a cube structure; one side face of the three-dimensional flexible main body is open and is a concave hook face; two ventilation openings are respectively formed in the left side face and the right side face of the three-dimensional flexible main body; one of the two ventilation opening is provided with the fan; the refrigeration plates are arranged from the fan to the other ventilation opening. According to the medical automatic regulating device disclosed by the invention, through an automatic control method, the temperature of the head of a user is regulated, and therefore the defects of a traditional cold compressing method and a traditional hot compressing method are replaced; the medical automatic regulating device has the advantages of being accurate in temperature regulation, reusable, convenient to use and the like.