PROBLEM TO BE SOLVED: To provide an X-ray machine which can move a top board in the longitudinal direction with smaller force.SOLUTION: When an operator operates an operation handle 14 to start moving of a top board 11, a potentiometer 23 detects that the top board 11 starts to move and its movement direction. A distance between a shaft 42 provided on an end of a support member 44 and a shaft 43 provided on an end of a base member 19 is increased by rotating a screw part 46 in a jack 45. With this, a base member 19 is oscillated around the shaft 41, the top board 11 becomes the inclined posture and thereby the operator can move the top board 11 with small force.SELECTED DRAWING: Figure 2