A thermal correcting connection assembly comprises a connection rod, a cotter pin, a clamping hoop, a clamping ring and an adjusting pad, wherein the clamping hoop is embedded in an installing groovein the upper end of the connection rod in a sleeved manner, and the clamping ring is arranged on the peripheral surface of the clamping loop in a sleeving manner; and the cotter pin penetrates the clamping ring, the clamping loop and the connection rod to fixedly connect the clamping ring, the clamping loop and the connection rod. The interval between the thermal correcting connection assembly andthe surface of a connected piece is adjusted through the adjusting pad. During thermal correcting, the thermal correcting connection assembly is inserted into a connection hole of the thermal correcting tool to be connected with the thermal correcting tool, the adjusting gasket is selected according to the actual distance between the installing groove of the connection rod and the work face of the thermal correcting tool, the clamping hoop is installed in the installing groove of the connection rod, the outer side of the clamping loop is sleeved with the clamping ring so that the clamping loop can be fixed, finally, the cotter pin is inserted into a through hole of the clamping ring, the clamping hoop and the connection rod, and the clamping ring, the clamping hoop and the connection rodare connected into a whole. The thermal correcting connection assembly achieves the purpose of connection of the thermal correcting tool, the disassembling difficulty, caused by thermal correcting, ofthe thermal correcting tool can be avoided, the production efficiency is improved, and the production cost is reduced.