Special heating device of liquid glucose including heating jar, heating coil, is equipped with heating coil in the heating jar, the top of heating jar is equipped with out sugared mouthful, and the thermometer is located to be equipped with by play sugar mouth, and the bottom of heating jar is equipped with into sugar mouth and surplus sugared discharge port. The utility model has the advantages that: 1, be steam in the heating coil, can not be because of the liquid glucose block up in the coil pipe, the device management of being convenient for. 2, establish surplus sugared discharge port at the extreme lower position, when heating the shut down, remaining sugar can be discharged in the equipment, can not singe the jam. 3, heating coil designs into the closed circulation formula, and the coil pipe is whole to be soaked in the liquid glucose, and heat exchange efficiency is good, and heat utilization rate is high. 4, this device is small, and the mounted position can conveniently put up on receiving the jar, the installation of being convenient for.