PURPOSE: To ensure travel of a travel vehicle, which travels while magnetically attracting to a travel plane, without slipping down even when traveling along a vertical wall face.

CONSTITUTION: A travel vehicle comprises an attitude detecting means 6 to detect the inclination of a travel vehicle mainframe 200 to a vertical direction, an energizing means 500 extension-, setout-free from the travel vehicle mainframe to energize magnetically attracting wheels from a wall face around a travel space to a travel plane side when it is being extending from the travel vehicle mainframe 200 and a control means to actuate the energizing means 500 extending from the travel vehicle mainframe 200 when the travel vehicle mainframe is detected to be in vertical attitude by the attitude detecting means 6.