Aiming at the problems of manual inspection of drainage pipeline,such as too small pipe diameter,flammability and explosion,a pipeline robot based on the integrated valve control was presented.The integrated valve has the advantages of sealing,explosion-proof and strong expansibility.The robot adopted pneumatic power systems and peristaltic walk way,which could walk and turn in a certain range of pipes with different diameters to complete pipe cleaning and inspection.The system was operated by slave control unit and controlled by PC through a single cable.The designed robot has the advantages of safety and explosion-proof,strong power guarantee,convenient recovery and maintenance of the faulty robot,and high cost performance.