A plasticizing device, comprising: a drive motor; a rotor that is capable of being rotated by the drive motor and has a lower groove formed face with a groove formed therein along the rotational direction of the rotor; a barrel that is opposed to the groove formed face and has a communication hole; a heating portion that is capable of heating a material in a pellet form supplied between the groove and the barrel; and a control unit that is capable of controlling the drive motor and the heating portion so as to plasticize the material supplied between the groove and the barrel and cause the material to flow along the groove and out from the communication hole, wherein the heating portion has a first heating portion and a second heating portion disposed closer to the communication hole than the first heating portion, the barrel has a first region and a second region that is closer to the communication hole than the first region, the control unit is capable of individually controlling the first heating portion and the second heating portion so that a temperature of the second region is higher than a temperature of the first region; and characterized in that: a refrigerant flow path disposed along a circumferential direction of the barrel farther from the communication hole than the first heating portion; an inlet portion that communicates with the refrigerant flow path and introduces a refrigerant inside the refrigerant flow path; and an outlet portion that communicates with the refrigerant flow path and discharges the refrigerant outside the refrigerant flow path. a drive motor; a rotor that is capable of being rotated by the drive motor and has a lower groove formed face with a groove formed therein along the rotational direction of the rotor; a barrel that is opposed to the groove formed face and has a communication hole; a heating portion that is capable of heating a material in a pellet form supplied between the groove and the barrel; and a control unit that is capable of controlling the drive motor and the heating portion so as to plasticize the material supplied between the groove and the barrel and cause the material to flow along the groove and out from the communication hole, wherein the heating portion has a first heating portion and a second heating portion disposed closer to the communication hole than the first heating portion, the barrel has a first region and a second region that is closer to the communication hole than the first region, the control unit is capable of individually controlling the first heating portion and the second heating portion so that a temperature of the second region is higher than a temperature of the first region; and characterized in that: a refrigerant flow path disposed along a circumferential direction of the barrel farther from the communication hole than the first heating portion; an inlet portion that communicates with the refrigerant flow path and introduces a refrigerant inside the refrigerant flow path; and an outlet portion that communicates with the refrigerant flow path and discharges the refrigerant outside the refrigerant flow path. a refrigerant flow path disposed along a circumferential direction of the barrel farther from the communication hole than the first heating portion; an inlet portion that communicates with the refrigerant flow path and introduces a refrigerant inside the refrigerant flow path; and an outlet portion that communicates with the refrigerant flow path and discharges the refrigerant outside the refrigerant flow path.