Provided is a physiotherapy instrument for human body facet joint inflammation. The physiotherapy instrument comprises a rigid therapy cavity (1) and a negative pressure generation control system (2). The therapy cavity (1) is provided with at least one opening (3) for a limb to stretch in and stretch out of. The therapy cavity (1) is connected to the negative pressure generation control system (2) by means of an air passage. The therapy cavity (1) is L-shaped and is used for allowing the limb to be put into same after a part of the thigh above the knee and a part of or all the shank below the knee bend, and for allowing a part of an arm above the elbow and a part of or all the forearm below the elbow to be put in after bending. The L-shaped therapy cavity (1) consists of several parts fitted with each other to form a whole. The opening (3) of the therapy cavity (1) and the limb are fixed by means of a sealed connecting component. The therapy cavity (1) of the physiotherapy instrument for human body facet joint inflammation is changed to be in an L shape from a conventional straight cylinder form, so that upper and lower parts of a joint are put into the therapy cavity at the same time after a knee joint or an elbow joint of the limb bends, thus changing the condition of mechanical instability between a straight cylindrical therapy cavity and the limb under a negative pressure.La présente invention concerne un instrument de physiothérapie pour l'inflammation des articulations zygapophysaires du corps humain. L'instrument de physiothérapie comprend une cavité de thérapie rigide (1) et un système de commande de génération de pression négative (2). La cavité de thérapie (1) est pourvue d'au moins une ouverture (3) pour qu'un membre s'étire dans et hors de celle-ci. La cavité de thérapie (1) est reliée au système de commande de génération de pression négative (2) au moyen d'un passage d'air. La cavité de thérapie (1) est en forme de L et est utilisée pour permettre au m
