An elbow support device for a vertebra traction bed, mainly comprising left and right support blocks (4.1, 4.2) which are respectively provided on the left and right sides of a bed body at the locations corresponding to the elbows of a human body. A person lies in a bed in a supine posture with his/her arms bent so as to place his/her elbows on the support blocks when the lumbar vertebra of the person is subjected to a downward pulling force, the support blocks apply an upward support force through the elbows on the upper body of the person, such that the lumbar vertebra is subjected to traction effect. The left and right support blocks (4.1, 4.2) are respectively embedded in the left and right sides of a mattress (3). The left and right support blocks (4.1, 4.2) are integrally formed with the mattress (3) when closed, and abut against the elbows of a human body and apply a supporting force to the elbows when vertically fixed. The support blocks are embedded in the left and right sides of the mattress (3) and are integrally formed with the mattress (3), thus the point of force on the upper arm of a human body can be in-line with the corresponding support block when the support blocks are used, efficiently solving the problem of support force offsetting in the prior art. Moreover, the support blocks are integrally formed with the mattress (3) when closed, allowing for an elegant appearance and convenient packaging and transportation.Un dispositif de support de coude pour un lit de traction de vertèbre, comprenant principalement des blocs de support gauche et droit (4.1, 4.2) qui sont respectivement disposés sur les côtés gauche et droit dun corps de lit, au niveau des emplacements correspondant aux coudes dun corps humain. Une personne se trouve dans un lit, couchée sur le dos, avec ses bras pliés de façon à placer ses coudes sur les blocs de support lorsque la vertèbre lombaire de la personne est soumise à une force de traction vers le bas, les blocs de support appl
