Heating Pack

The present invention relates to a heating pack. The heating pack includes: a hollow pack body part made of a material with liquid-tight properties; a resistive heating pattern formed on the inner surface of the pack body part; an internal terminal coupled to the pack body part so as to be electrically connected to the resistive heating pattern through a terminal connecting rivet made of a conductive material and passing through the pack body part in a thickness direction inside the pack body part; an external terminal coupled to the pack body part through the terminal connecting rivet outside the pack body part; a power line electrically connected to the external terminal; a heating material stored in the internal space of the pack body part; and a blocking layer formed on the inner surface of the pack body part so as to block an electrical contact between the internal terminal and the heating material and between the resistive heating pattern and the heating material. Accordingly, heat can be efficiently transmitted to the heating material while preventing the liquid-tight properties of the pack body part from being deteriorated when a heating element is formed inside the pack body part.