The utility model provides an
electromagnetic induction coil, a device and a heating smoking set, comprising at least two Litz leads which are arranged side by side and have insulated surfaces, the Litz leads spirally extend and are wound into a multi-turn coil, and an accommodating cavity is formed in the coil along the extending direction; the first end of the coil is bent and then extends to be roughly flush with the second end in the extending direction, and the
electromagnetic induction coil generates an induced
magnetic field to heat the
smoke cartridge in the power-on state. A circuit
system can capture and process feedback signals conveniently, the
diameter, the number of strands, the number of
layers and the number of turns of an optimized electric conductor are flexibly set, a multi-turn coil with appropriate
inductance and quality factors is wound, the
skin effect and the proximity effect under high-frequency application are reduced, and the multi-turn coil has the advantages of being low in loss and high in reliability. The method is suitable for preparing an
aerosol generating
system with high working efficiency.