The invention discloses a product clamping mechanism for a clothes production line. The product clamping mechanism comprises a first fixing frame, a moving unit, an adjusting unit and a second fixingframe; as for the first fixing frame, the second fixing frame and the first fixing frame are arranged in a left-right corresponding mode, stabilizing units are arranged on the two sides of the bottomend of the first fixing frame and the two sides of the bottom end of the second fixing frame, and fixing units are arranged at the front end and the rear end of the left side face of the first fixingframe; and the moving unit comprises a first linear motor, a fixing plate, an electric telescopic rod, a supporting plate, second linear motors, a main motor and a rotating shaft, the two second linear motors are arranged at the top ends of the inner side faces of the first fixing frame and the second fixing frame correspondingly, stators at the two ends of the first linear motor are connected with the inner side faces of rotor bases of the two second linear motors correspondingly, and fixing plates are arranged on the left side and the right side of a rotor base of the first linear motor. Theproduct clamping mechanism for the clothes production line has the advantages that the use is simple, the adjustment is convenient, the clamping is firm, and the practicability is high.