The invention provides a mine coal and gas outburst warning robot and a warning method of mine coal and gas outburst. The mine coal and gas outburst warning robot comprises crawler-type car frames, aninstalling plate connected to the upper parts of the car frames, a supporting unit connected to the top surface of the installing plate and capable of changing drilling angles, a drilling unit arranged at the top of the supporting unit and capable of sliding in a single degree of freedom mode in the length direction of the top of the supporting unit, a telescopic drilling cuttings collecting sensing and gas analysis unit arranged between the drilling unit and the top of the supporting unit, a gas discharging initial velocity sensor arranged on the tail part of the drilling unit, a gas concentration sensor arranged on the top surface of the installing plate and a treatment unit arranged on the top surface of the installing plate. According to the mine coal and gas outburst warning robot and the warning method of the mine coal and gas outburst, a coal and gas outburst warning result judgment model is established, the influence of man-made subjective judgment on warning results is avoided, the safe warning for a working face area to be warned can be automatically realized under the remote operation, and the real-time and accurate prediction of the risk of coal and gas outburst of coal bodies in the front of the work is realized.