The invention discloses a circulating type paint mixing device for producing a petroleum pipeline. The circulating type paint mixing device comprises a barrel body, a first motor, a disc, a movable rod, a spline shaft, an agitating shaft, a sleeve, a first gear, a second gear, a second motor, agitating rods, a through hole, a round plate, a through hole, a first baffle plate, a first spring, a second through body, a third motor, a second agitating shaft, second agitating rods, a second baffle plate and a second spring. The circulating type paint mixing device is provided with the first motor,the disc, the movable rod, the spline shaft, the second motor, the first gear, the second gear, the agitating shaft and the agitating rods; the agitating rods are enabled to move up and down while being enabled to rotate through cooperation; the agitation is enabled to be more sufficient and uniform; the agitation efficiency is improved; the circulating type paint mixing device is provided with the round plate, the through hole, the first baffle plate, the first spring, the second through body, the third motor, the second agitating shaft, the second agitating rods, the second baffle plate andthe second spring; paint in the barrel body is enabled to continuously circularly move; the paint is sufficiently uniformly agitated, and the agitation efficiency is further improved.