This atomization unit is provided with a coil, which is formed of a wire having a spiral shape and has a shape that extends in a prescribed direction, and a liquid holding member, which holds an aerosol source, wherein: in the coil, first contacts, which are electrically connected to a first pole of a power source, and second contacts, which are electrically connected to a second pole side of the power source, are provided at intervals on the wire； the coil has a heating portion, which is formed of the wire between the first contact and second contact that are disposed closest to each other on the wire, a first end portion, which is formed of the wire on one outer side of the heating portion on the wire, and a second end portion, which is formed of the wire on the other outer side of the heating portion on the wire； and at least a portion of the inner side surface of the liquid holding member is disposed so as to be in contact with or in close proximity to the heating portion in a direction that is orthogonal to the prescribed direction.
