X-RAY DIAGNOSTIC APPARATUS

PROBLEM TO BE SOLVED: To provide an X-ray diagnostic apparatus reduced in work.SOLUTION: The X-ray diagnostic apparatus includes: a top plate-supporting body 12 supporting a top plate 11 where a subject P is placed, so as to be movable in a longitudinal direction, in a standing and falling direction and in a vertical direction; an arm 23 movably supporting an X-ray detector 26 detecting X ray transmitting through an X-ray pipe 24 irradiating the subject P with the X ray, and the subject P; and a position-storing part 43 storing image positions T1, T3 of the top plate 11 where the subject P is positioned based on the arm 23, and the arm 23, and a retreating position T2 of the arm 23. The top plate 11 at the image position T3 is moved in the standing and falling direction and in the vertical direction so as to maintain the vertical position of the portion of the subject P corresponding to the position of an isocenter C of the arm 23 at the image position T1 stored in the position-storing part 43 while making a connection with the image position T3 of the top plate 11 when the arm 23 stops at the retreating position T2.