To provide a dyeing device, especially a small electrothermal printer used in the field of handicraft, for electrothermally transfer-printing a dye coated on a color mat or the like to a cloth (woven fabric, nonwoven fabric or the like).

This electrothermal printer for dyeing comprises a heater portion 110 and a printing base 210 which are received in a vertically openable case 10. The case 10 can be closed to simply heat and transfer the dye of a color mat 30 to a cloth 20 disposed on the printing surface 211 to give an excellent finish.