A massaging chair is provided with a base (3) a seat (4) two arms (31) a pivotably back (5) and two palm massaging devices (6) each including a sliding assembly (62) slidably disposed on the arm, and a massaging assembly (61) on the sliding assembly. The massaging assembly includes a casing (611) with at least one upper first air cushion (612) and at least one lower second air cushion (612) inside the casing, each of the at least one second air cushions having massaging knobs. According to one embodiment the sliding assembly comprises a support (622) between two parallel rails (621), with two rollers (624) on each side of the support rotatable in one of the rails, and a seat (623) held by the support and connecting to the massaging assembly. Alternatively, the two parallel rails each have a plurality of equally spaced apart semi-spherical holes (6211) an elongated support between the rails and having two internal biasing members (6221) and two balls (6222) at both ends respectively, each ball being held in a hole by the respective biasing member, and a seat held by the support and connecting to the massaging assembly. Alternatively, a grooved rail (621) having an inverted T-shaped longitudinal section is provided on the arm (31) and a support (622) having an inverted T-shaped longitudinal section is disposed in the rail (621) to form a mating joined relationship. Another embodiment uses a threaded shaft (6211) driven by an AC motor, the seat of the sliding assembly having a threaded leg.
