To provide a self-travelling automatic painting device automatically drawing images or characters in a wide place such as a ground or a stadium.

A vehicle body 11, paint tanks 20a-20e respectively housing paints of respective colors and loaded on the vehicle body 11, a paint head 30 arranging a plurality of spray guns 30a-30e connected to each of the coating material tanks 20a-20e with a prescribed interval, a movement mechanism 25 reciprocally moving the paint head 30, a controller 40 for controlling the paint discharged from respective spray guns 30a-30e and a travelling control mechanism 50 controlling the travelling of the vehicle body 11. The amount of the paint discharged from the spray guns 30a-30e is controlled by the controller 40 and a desired character or image is painted on a desired place G by linking the movement of the vehicle body 11 in the travelling direction with the movement of the ink head 30.