A non-burning type flavor inhaler comprising: an atomizer configured to atomize an aerosol source without burning; a power source configured to accumulate power to be supplied to the atomizer ; and a controller configured to control a power supply to the atomizer in a mode selected from among a plurality of modes, wherein the plurality of modes include a plurality of operation modes that the atomizer generates an aerosol, and a restriction mode that restricting drive of the atomizer and defined separately from the plurality of operation modes, the plurality of operation modes are switched in an order in accordance with a predetermined switching order, an index indicating an amount of the aerosol that is to be generated from the atomizer has a difference of a certain value or more from each other between two operation modes adjacent in the predetermined switching order, wherein the index is a total amount of aerosol that is to be generated from the atomizer in a puff action series which is a series of puff actions repeated by a predetermined number, and the total amount of aerosol has a difference of 2.0 mg or more from each other between two operation modes adjacent in the switching order, the index is a standard amount of aerosol that is to be generated from the atomizer in a single puff action, and the standard amount of aerosol has a difference of 0.3 mg or more from each other between two operation modes adjacent in the switching order, or the index is an aerosol amount per unit time that is to be generated from the atomizer in a unit time, and the aerosol amount per unit time has a difference of 0.15 mg/sec. or more from each other between two operation modes adjacent in the switching order, and wherein the controller is further configured to not supply power to the atomizer from a timing of selecting any operation mode from the plurality of operation modes until the lapse of a certain period, but supplies power to the atomizer after the lapse of the certain period. an atomizer configured to atomize an aerosol source without burning; a power source configured to accumulate power to be supplied to the atomizer ; and a controller configured to control a power supply to the atomizer in a mode selected from among a plurality of modes, wherein the plurality of modes include a plurality of operation modes that the atomizer generates an aerosol, and a restriction mode that restricting drive of the atomizer and defined separately from the plurality of operation modes, the plurality of operation modes are switched in an order in accordance with a predetermined switching order, an index indicating an amount of the aerosol that is to be generated from the atomizer has a difference of a certain value or more from each other between two operation modes adjacent in the predetermined switching order, wherein the index is a total amount of aerosol that is to be generated from the atomizer in a puff action series which is a series of puff actions repeated by a predetermined number, and the total amount of aerosol has a difference of 2.0 mg or more from each other between two operation modes adjacent in the switching order, the index is a standard amount of aerosol that is to be generated from the atomizer in a single puff action, and the standard amount of aerosol has a difference of 0.3 mg or more from each other between two operation modes adjacent in the switching order, or the index is an aerosol amount per unit time that is to be generated from the atomizer in a unit time, and the aerosol amount per unit time has a difference of 0.15 mg/sec. or more from each other between two operation modes adjacent in the switching order, and wherein the controller is further configured to not supply power to the atomizer from a timing of selecting any operation mode from the plurality of operation modes until the lapse of a certain period, but supplies power to the atomizer after the lapse of the certain period. <EOS>