The invention relates to the technical field of wagon balances and particularly relates to a double-layer buffer wagon balance. The double-layer buffer wagon balance comprises an upper weighing platform and a lower weighing platform, wherein a weighing body cushion block for reducing abrasion of the bottom surface of the lower weighing platform is arranged at the lower end of the lower weighing platform; buffer springs are arranged on four corners of the lower weighing platform; the upper weighing platform is arranged at the top ends of the buffer springs at four corners; an L-shaped transport protection clamp is arranged on the lower weighing platform; a suspension ring screw hole for fixing a suspension ring is formed in the weighing surface of the upper weighing platform; a connecting box is arranged in the edge of one side of the lower weighing platform; and cantilever-type alloy steel sensors are arranged in the upper weighing platform and the lower weighing platform. The double-layer buffer wagon balance is high in rigidity and strength, simple, high in design structure sense and convenient to operate, and consistent high quality of various components is ensured, thereby ensuring stable and reliable metering accuracy and metering repeatability.