The utility model relates to a massager with symmetric machine cores. The massager with the symmetric machine cores comprise a first machine shell assembly, a second machine shell assembly, a first moveable sleeve, a second movable sleeve, a first transmission set, a second transmission set, a first massage set, a second massage set, a first guide tooth groove and a second guide tooth groove. The first machine shell assembly and the second machine shell assembly are respectively connected with a connecting belt outwards. The first machine shell assembly and the second machine shell assembly are in mutual pin joint respectively through the first movable sleeve and the second movable sleeve to adjust and turn a specific included angle. Power sources are arranged in the first machine shell assembly and the second machine shell assembly to drive the first transmission set and the second transmission set and to be connected outwards with and drive the first massage set and the second massage set to massage in a fixed point mode. A first guide tooth groove screw and a second guide tooth groove screw are driven in the direction of the first movable sleeve and the second movable sleeve in a fixed point mode, the first movable sleeve and the second movable sleeve are embedded in a guide tooth groove of the first guide tooth groove screw and a guide tooth groove of the second guide tooth groove in an embedded mode through a first tooth-shaped key and a second tooth-shaped key respectively, when the first guide tooth groove screw and the second guide tooth groove screw rotate, the first machine shell assembly and the second machine shell assembly can be driven to be synchronously and horizontally close to or far away from the direction to move and massage, and if one side is reset first, then movement is stopped to wait the other side to be reset, and movement is conducted together to achieve synchronization.
