The space of T-shaped comprehensive pipe corridor is narrow and long and the branches are connected, which increases the difficulty of fire smoke control and aggravates the risk of fire accidents. The influences of different ventilation modes on smoke emission are simulated by using PyroSim software model, and the influences of the air inlet, outlet position and outlet wind speed on the smoke spread in the cabin are explored when there is a fire at the intersection of T-shaped integrated pipe corridor cable cabin. The results show that the one-in-two-out ventilation mode with central air intake, left and right air outlet and a critical ventilation velocity of 1.75 m/s is the most favorable mode for fire smoke control, and the direction of air inlet is suitable to be used as an emergency evacuation channel, which can provide references for the design of T-shaped comprehensive pipe corridor.