[Problem to be solved] Provided is a painting robot capable of realizing at least one of improvement in movement performance, reduction of the influence of a water head pressure difference, and prevention of occurrence of a state in which the pressure cannot be adjusted by a first adjustment valve and a second adjustment valve. [Means for solving the problems] The painting robot 10 comprises a robot arm R1 attaching the painting head unit 50 to the tip, a paint supply mechanism 70 disposed between the robot arm R1 and the painting head unit 50, and a control unit 100, the control unit 100 comprising a paint supply means 90, a paint supply control unit 140 that performs control of at least one actuation of the paint supply means 91, the first adjustment valve 92 and the second adjustment valve 93 so as to be a pressure set point read from the control memory 141, and controls operation of at least one of the paint supply means 90 and the paint recovery means 91 while adjusting the openness of the first adjustment valve 92 and the second adjustment valve 93 within a predetermined adjustment range when controlling the pressure of the paint to be a pressure set point.