The invention discloses an Internet of Things intelligent distribution box for tunnel engineering, which comprises a box body, a box door and a programming controller, the box door is hinged to the front side of the box body, the programming controller is fixedly mounted on the front side of the box door, ventilation windows are formed in the left side and the right side of the box body, and ventilation and heat dissipation mechanisms are arranged in the ventilation windows. A fire extinguishing mechanism is arranged at the top of the box body, a base is installed at the bottom of the box body, locking universal wheels are installed at the four corners of the bottom of the base, and a damping mechanism is arranged in the base. The heat dissipation effect of the distribution box is enhanced, electrical elements in the distribution box are prevented from working in a high-temperature state, the service life of the electrical elements in the distribution box is prolonged, the distribution box has a fire extinguishing function, economic losses caused by combustion are reduced, the distribution box has remote monitoring and fixed-point troubleshooting functions, the technical level of equipment maintenance is improved, and the service life of the distribution box is prolonged. And the safety and the reliability of electricity utilization are ensured.