The invention relates to an automobile bumper full-aspect paint spraying workbench, and belongs to the technical field of nozzle configuration or installation. The workbench comprises a working table,wherein a transmission mechanism and a paint spraying device are arranged on the working table; the transmission mechanism comprises a first conveying belt, a first conveying chain, a second conveying belt, a second conveying chain and a third conveying belt, wherein the first conveying belt, the second conveying belt and the third conveying belt are horizontally placed, the first conveying chainand the second conveying chain are vertically placed, the first conveying chain is arranged between the first conveying belt and the second conveying belt, and the second conveying chain is arrangedbetween the second conveying belt and the third conveying belt; and the paint spraying device comprises a first spray gun, a second spray gun, a third spray gun, a fourth spray gun, and the first spray gun, the second spray gun, the third spray gun and the fourth spray gun are arranged right above the first conveying belt, the first conveying chain, the second conveying belt and the second conveying chain respectively. According to the technical scheme, the problem that automobile bumpers cannot be painted in batches in the prior art is solved, and the practicability is high.