A non-combustion-type flavor inhaler includes a first unit including a battery configured to store electric power, a generator configured to generate an inhalant ingredient from an inhalant ingredient source by electric power provided from the battery, and a controller configured to electrically control the generator; a second unit configured to detachably connect to the first unit; and a resistor configured to conductively connect to the generator by parallel connection or serial connection when the second unit is connected to the first unit. The controller is configured to detect a connection between the first unit and the second unit based on a difference between an electric resistance value (R1) of the generator and a combined resistance value (Rc) of the generator and the resistor.