Heater used for heating tail end of infusion tube and preparation method of heater

The invention relates to a heater used for heating a tail end of an infusion tube and a preparation method of the heater. The heater comprises a flexible body; a first containing groove used for wrapping and containing the infusion pipe at the tail end of the infusion tube is formed in the axial direction of the flexible body, and the cross section of the first containing groove is in the shape of C; the groove wall of the first containing groove is provided with a second containing groove which is internally provided with a temperature sensor used for monitoring the temperature of the infusion pipe; and a conductive heating body used for heating is embedded in the flexible body. The heater can perform efficient, energy-saving and pollution-free heating on liquid at the tail end of the infusion tube, the defect that heating is performed at the upper end of the infusion pipe is avoided, operation of a medical worker is facilitated, and meanwhile the comfort sense of a patient receiving infusion is enhanced. 本发