The invention belongs to the technical field of strain testing, in particular to a device with a high-temperature pressing comprehensive function, and aims at solving the problem that the requirement for using high-temperature adhesives to paste and install strain gauges on a large-area thin-wall test piece cannot be met in the prior art. The device comprises a cylindrical magnet, a cam sliding rail, a casing, a rolling pin, a transition shaft sleeve, a rotating handle, an aviation plug, a ball bearing and an electric heating piece, wherein the cam sliding rail is fixedly installed in the casing; the transition shaft sleeve is installed in the casing; an bearing outer ring of the ball bearing is installed in the transition shaft sleeve; the rolling pin is installed on a bearing inner ring of the ball bearing; the cylindrical magnet is installed in a through hole in the center of the transition shaft sleeve; the rotating handle is installed on the upper surface of the transition shaft sleeve; the aviation plug is fixed to the upper surface of the transition shaft sleeve; and the electric heating piece is installed on the lower surface of the cylindrical magnet. According to the device with the high-temperature pressing comprehensive function, closing suction is conducted through the magnetic force, reliability and safety are achieved, the pressing force is stable, the device is not affected by the temperature, the electric heating piece is controlled through a temperature controller, and thus the heating temperature can be precisely controlled.