Abstract: In view of the high-frequency brakes of mine explosion-proof vehicles in long-distance and large-slope conditions, the braking process has insufficient braking force, slow response, and high risk of vehicle stall. This paper is based on intelligent detection and electro-hydraulic control. The technology designed a set of mining vehicle intelligent steady speed combined braking system and took the 8° ramp as an example for parameter design and verification test. The test results show that the system can effectively control the running speed of the vehicle at a safe driving speed when the full-load vehicle is descending on the 8° ramp, effectively avoiding the high-frequency sub-brake braking during the downhill process of the vehicle, and the combined vehicle driving brake. Eliminate the occurrence of vehicle ramp stalls, improve the life safety of mine vehicle drivers, reduce vehicle failure rate, and improve coal mine production efficiency.