The invention discloses a tool framework for engine radiator tanks. The tool framework comprises a fixing bracket. Two first beams, two second beams and two third beams of the fixing bracket are fixed to the two ends respectively, stop bars are fixed between the first beams and the second beams side by side, and movable clamping plates are fixed to the second beams side by side. First supports are fixed to one side of one third beam side by side, second supports are fixed to one side of the other third beam side by side, and the first supports are opposite to the second supports in position. According to the tool framework, one radiator tank is fixed through one pair of fixed supports and one pair of movable clamping blocks, the radiator tanks are stored and transported by fixing several pairs of fixed supports and several pairs of movable clamping blocks to the framework side by side, and stress damage to the structures of the radiator tanks in storage and transport is avoided.