PROBLEM TO BE SOLVED: To provide a sweet tea production device capable of performing drying with a heat history suitable for the sweet tea.SOLUTION: Shaded tea leaves as a raw material of sweet tea are subjected to steam heating by a steamer, and then are subjected to dispersion and cooling by a cooling dispersion machine, and then are mounted on a start end of a first conveyor 13 of a sweet tea production device 10. When the tea leaves are mounted on the first conveyor 13 and passes through a first drying chamber 11, the tea leaves are dried by heating by plural far infrared heaters 15, so that the heating temperature (atmosphere temperature) is controlled to be higher at an inlet side (start end side of the first conveyor 13) of the first drying chamber 11 and lower at an outlet side (termination side). In addition, the tea leaves are made go out the first drying chamber 11 and are delivered from the termination of the first conveyor 13 to a start end of a second conveyor 14, then when the tea leaves are mounted on the second conveyor 14 and passes through a second drying chamber 12, the tea leaves are heated and dried by the plural far infrared heaters 15, so that the temperature is controlled to be higher at an inlet side (start end side of the second conveyor 14) and is lower at an outlet side (termination side), in a sweet tea production device 10.