The invention relates to an intelligent exploring robot based on multi-sensor fusion detection and a detecting method thereof. The intelligent exploring robot comprises a support, a track chassis anda damping mechanism are arranged on the two sides of the support correspondingly, and the damping mechanism is located on the track chassis. Thermistors, flame sensors, ultrasonic sensors and infraredsensors are further arranged on the two sides of the support, the thermistors are evenly distributed on the two sides of the support, and the infrared sensors and the ultrasonic sensors are arrangedon the unsheltered position of the front portion of the support. The flame sensors are arranged on the open position, with a large air contact area, of the support, the support is internally providedwith a single chip microcomputer, a gear motor, a signal receiving station and a collision sensor, and the single chip microcomputer is used for receiving signals transmitted by the collision sensor,the thermistors, the flame sensors, the ultrasonic sensors and the infrared sensors and controlling the gear motor to act. A signal station conducts information interaction with the single chip microcomputer, a mechanical arm is arranged at the top of the support and controlled by the single chip microcomputer to work, and a power source is further arranged in the support.