To simply and excellently apply a coating material to, for example, characters engraved on a memorial tablet.

The device 11 for applying the coating material to the engraved characters is provided with: a dispenser 21 discharging the coating material from a discharge port 24 at the tip; a slider 20 for holding the dispenser 21 while making the discharge port 24 face downward above a working table 18 supporting a material 31 to be coated; and a driving part for relatively moving the discharge port 24 to the material 31 to be coated by driving the working table 18 and/or the slider 20. Further, the device 11 includes a control circuit 26 for carrying out at least one of control to increase the discharge quantity of the coating material as the engraved depth is made deeper and control to slow the driving speed of the driving part, on the basis of depth information when the engraved depth of each part 21, 18, 20 is changed to change the size of the character.