A vertebral traction bed. A thrust bracket (4) is arranged at the lower side of a bed plate (3), and an electric push rod (6A) drives a thrust cross rod (4.1) of the thrust bracket (4) to move to the outside. After a human body lies on his back on the bed plate (3) and shanks suspend at the tail of the bed, thrust is functioned inside knee joints by the thrust cross rod (4.1) so as to generate the traction function on a centrum or the weight of parts below the hip of the human body is supported by a spacer (10) arranged on the bed plate (3), so the thrust cross rod (4.1) of the thrust bracket (4) drives the spacer (10) to move to the outside to generate traction function on the centrum. The bed plate (3) does not move during the whole push-and-pull process, and therefore, the problem that a user is inconvenient to take a rest by continuously lying on the bed because cavities are formed in the bed plate (3) when the centrum treatment is carried out by pushing and pulling the bed can be effectively solved. The thrust cross bed (4.1) is fixedly sucked by the magnetic force of magnets (4.2A71, 4.2B71), so it can ensure that the pulling force received by the centrum of the human body does not exceed the magnetic attraction force, and the safety in use can be effectively ensured.Linvention concerne un lit pour étirement dun corps vertébral, dont le côté inférieure du cadre de lit (3) présente un support de poussée (4) dont la barre transversale de poussée (4.1) est entraînée par une tige de poussée électrique (6A) vers le côté externe. La personne est couchée sur le dos sur le cadre de lit (3), les mollets sont suspendus au-dessus de la partie finale au pied du lit et la barre transversale de poussée (4.1) exerce une poussée sur le côté interne des articulations du genou de manière à produire une poussée sur le corps vertébral. En variante, on prévoit une cale (10) sur le cadre de lit (3), laquelle supporte la partie des fesses dune personne, alors que la barre transversa
