Underground space intelligent construction system and method

Provided is an underground space intelligent construction system and method, comprising a terrain detection and processing robot unit, a 3D printing robot unit and a centralized electronic control unit; the terrain detection and processing robot unit comprises an all-terrain walking chassis, a detecting robotic arm, a rotary robotic arm and a vehicle-mounted electric control device; the 3D printing robot unit comprises an all-terrain walking chassis, a printing robotic arm, a printing material input device and a printing electronic control device; the centralized electronic control unit comprises a central control computer, a detection control loop, a data modeling loop, a detection robot position feedback correction loop, a terrain processing loop and a 3D printing control loop. The underground space intelligent construction system has high degree of automation, the construction of deep underground space based on underground cavities can be realized under the premise of effectively supporting the interior of the underground cavity, meanwhile, the development cost and the hidden dangers of construction safety can be reduced, which is especially suitable for the construction work of deep underground space based on underground cavities.