A foldable massage chair has a foldable chair and a massaging mechanism. The massaging mechanism synchronizes the movement of the first and second massage units and the two moving members by driving the two primary shafts with a single motor, and the two moving members are equipped with the two driving gears with a passive gear engaging with the two belts. Therefore, there is no needs for rail structure, so that the massaging mechanism can be installed with the two belts in the foldable chair which can provide different reclining angles according to the characteristics of the folding chair. Moreover, the folding chair can be folded up, which is easy for storage.
