Provided is a massager (1) with symmetric machine cores, comprising: a first and a second machine shell assembly (10a, 10b), two connecting belts (20a, 20b), a first and a second movable sleeve (40a, 40b), a first and a second transmission unit (50a, 50b), a first and a second massaging unit (60a, 60b), a first and a second slotted screw (70a, 70b) and a first and a second power source (51a, 51b). The first and the second machine shell assemblies (10a, 10b) are pivoted with each other by means of the first and the second movable sleeves (40a, 40b) to form a plurality of specific included angles. The first and the second power sources (51a, 51b) are provided in the first and the second machine shell assemblies (10a, 10b) to drive the first and the second transmission units (50a, 50b) said first and second transmission units (50a, 50b) drive the first and the second massaging units (60a, 60b) to perform massaging and kneading at a fixed point, and at the same time drive the first and the second slotted screws (70a, 70b) to a fixed point in the direction of the first and the second movable sleeves (40a, 40b) and a first and a second tooth-shaped key (41a, 41b) of the first and the second movable sleeves (40a, 40b) are embedded into a first and a second slot (71a, 71b) of the first and the second slotted screws (70a, 70b) such that when the first and the second slotted screws (70a, 70b) rotate, the first and the second machine shell assemblies (10a, 10b) can be driven to synchronously move towards or away from each other for performing massaging and kneading.La présente invention concerne un masseur (1) doté de cœurs de machine symétriques, comprenant : des premier et second ensembles coques (10a, 10b) de machine, deux bandes de liaison (20a, 20b), des premier et second manchons mobiles (40a, 40b), des première et seconde unités de transmission (50a, 50b), des première et seconde unités de massage (60a, 60b), des première et seconde vis fendues (70a, 70b) et des premièr
