The invention provides a heavy load robot. The heavy load robot comprises a base and a control cabinet. A supporting seat with a disk-shaped bottom is movably connected to the base, a driving device used for driving the supporting seat to rotate on a horizontal plane by 360 degrees is arranged in the base, and a first speed reducer and a second speed reducer are fixedly and oppositely arranged on the supporting seat; a first main supporting rod capable of rotating around the first speed reducer is fixedly connected to a connecting hole of the first speed reducer, a third speed reducer is fixed at the top end of the first main supporting rod, and a second main supporting rod is fixed to the connecting holes of the two ends of the third speed reducer; a third main supporting rod is connected between the first speed reducer and the second main supporting rod in a hinged mode, and a fourth speed reducer is fixed to the top of one end, away from the third speed reducer, of the second main supporting rod; and a first auxiliary rod is fixedly connected to the first speed reducer, a second auxiliary rod is hinged to the other end of the first auxiliary rod, a third auxiliary rod is hinged to the second auxiliary rod, the second auxiliary rod is hinged to the third speed reducer, and the other end of the third auxiliary rod is hinged to the fourth speed reducer on the second main supporting rod.