A human body curve guide rail and a dual-movement massaging mechanism for a massaging chair. The massaging mechanism comprises a symmetrical first guide rail (1), a second guide rail (2), an upper massaging machine (7), and a lower massaging machine (8). The symmetrical first guide rail (1) is disposed at left and right edges of the mechanism, and the lower end of the symmetrical first guide rail (1) located under the mechanism is connected to the second guide rail (2). A gear rack (9) is disposed in a sliding groove at an internal edge of each of the symmetrical first guide rail (1) and the second guide rail (2). The interior of each of the upper massaging machine (7) and the lower massaging machine (8) is provided with a group of traveling gears (10) meshed with the corresponding gear rack (9). The traveling gears (10) are connected to a traveling motor (12). The present invention has the following beneficial effects: by mans of assembling and connecting S-shaped curve guide rails, the massaging machines can massage from the head to calves if only L-shaped guide rails are disposed, the massaging machines can only massage from the head to thighs the two different structures can be applicable to different consumers two groups of the massaging machines are used for massaging different body portions of a treated person in an up-and-down traveling mode, that is, the massaging machines can perform kneading, knocking, shiatsu, massotherapy and other massaging actions on portions from the neck to the calves along the curve guide rails.La présente invention concerne un rail de guidage possédant les courbes du corps humain et un mécanisme de massage à double mouvement pour chaise de massage. Le mécanisme de massage comprend un premier rail de guidage symétrique (1), un second rail de guidage (2), une machine de massage supérieure (7) et une machine de massage inférieure (8). Le premier rail de guidage symétrique (1) est disposé au niveau des bords gauche et droit du mécanis
