The invention provides an operating temperature simulation device for a special high-voltage wall bushing. The simulation device comprises an outdoor test box and an indoor test box. The outdoor test box is used to simulate the outdoor temperature environment of the special high-voltage wall bushing to be measured, the simulation outdoor temperature ranging from -40 to 60 DEG C. The indoor test box is used to simulate the indoor temperature environment of the special high-voltage wall bushing to be tested, and the simulation indoor temperature can be as high as 60 DEG C. Compared to the prior art, in the simulation device, a heater and a refrigeration unit are mounted on an enclosed test box, so that inner temperature of the test box can be adjusted, and the indoor running temperature, the outdoor running temperature, and the temperature difference therebetween can be simulated. External current is introduced to the wall bushing to be tested via a large current introduction device, so that a temperature rise test of the wall bushing under a simulated actual running temperature condition can be realized, and thus current-carrying and heat radiation property of the special high voltage wall bushing to be tested can be accurately examined.