Auxiliary heating device

The auxiliary heating device comprises a heating device, a wrapping bag is arranged on the outer surface of the heating device, a cavity is formed in the wrapping bag, an opening is formed in the top of the wrapping bag, the heating device comprises a fixing plate matched with the top of the wrapping bag, two electric heating rods are arranged at the bottom of the fixing plate in a spaced mode, and the fixing plate is arranged at the top of the wrapping bag. The multiple wrapping bags are arranged, every two adjacent wrapping bags are in flexible connection, and the top ends of the electric heating rods are electrically connected with an external power controller through electric wires. According to the auxiliary heating device, the multiple wrapping bags are arranged and are in flexible connection, so that the formed auxiliary heating device can wrap the insulin needle in a bending mode like a wrist strap, then the power supply controller is used for supplying power to the electric heating rod, the electric