TVIS1000 train bottom inspecition robot adopts the combination of wheeled motion platform, mechanical arm and vision system, runnning in the train maintenance ditch, instead of manual work to complete the inspection task of the conditions of the train bottom in the daily maintenance work of the train. It solves the problems of heavy task, difficult to detect, leakage inspection, etc. encountered by traditional manual inspection, so as to reduce inspection labor costs and personnel work intensity. Thus, the labor cost of inspection and the work intensity of personnel can be reduced, the efficiency and quality of inspection can be improved, and the hidden danger of train operation can be eliminated in a timely and comprehensive way.