The invention discloses a drying device of a clamping heat conduction type film laminating machine. The device comprises a drying box, a heating roller, heat conduction blocks, heat transfer plates, aheating block and an air inducing mechanism. According to the device, the inner structure of the heating roller is elaborately designed, a heating groove is formed in one end of the heating roller inthe axial direction from the middle to the inside, and a plurality of heat conduction grooves are formed in one end of the heating roller in the axial direction from the periphery to the inside; a plurality of heat transfer grooves are formed between the heating groove and the plurality of heat conduction grooves, then the heating block are installed in the heating groove, the heat transfer plates are installed in the heat transfer groove, the heat conduction blocks are installed in the heat conduction groove, and the outer sides of the heat transfer plates are connected with T-shaped clamping grooves of the heat conduction blocks through T-shaped clamping connection teeth in a clamped mode; and the inner sides of the heat transfer plates are connected with dovetail-shaped clamping grooves of the heating block through dovetail-shaped clamping blocks in a clamped mode, so that the stability of the contact among the heat conduction blocks, the heat transfer plates and the heating blockis guaranteed, moreover, the contact completeness is improved, the two ends of the heat transfer plates extend to the interior of the heat conduction blocks and the interior of the heating block, so that rapid heat conduction and heat transfer are achieved.