The invention discloses a novel steel rail insulated joint gluing protection device which comprises two steel rail insulated joints. A gluing seam is formed between the two steel rail insulated joints. An adhesive is arranged in the gluing seam and sequentially coated with a heat preservation layer, a reinforcing layer and a shell body. Each of the heat preservation layer, the reinforcing layer and the shell body is of a C-shaped structure. The heat preservation layer is made of polyurethane rigid foam. The reinforcing layer is made of number 55 steel. The lower ends of the two side walls of the shell body retract inwards. The novel steel rail insulated joint gluing protection device can overcome the defects in the prior art, the structure is simple and reasonable, the adhesive connectingthe steel rail insulated joints at the two ends is fully protected, the situation that the performance of the adhesive fluctuates when the temperature changes and thus the gluing quality is poor is prevented, the adhesive is prevented from being in an exposed state for a long time, and the service life is prolonged.