The invention provides a clamping head which comprises a base, a turning support, a finger fixing mechanism, a driving mechanism and a press block fixing mechanism, wherein the base is mounted on an external driving mechanism, and comprises a top plate, an end plate, a left side plate, a right side plate and a first cavity in the interior; the turning support comprises a connecting part and a turning part; the finger fixing mechanism comprises a fixing platform, a crank, a connecting rod, a sliding platform, a plurality of mechanical fingers and a plurality of ball joint connecting rods; the driving mechanism comprises a push-rod motor; the press block fixing mechanism comprises a shaft sleeve, a core shaft, two bending arms, a spring, two short connecting rods and two press blocks; each press block comprises a press block connecting part and a contact part. According to the clamping head provided by the invention, the mechanical fingers of different shapes can effectively fix workpieces of different shapes, so that the adaptability is relative high; the mechanical fingers and the contact parts of the press block jointly act on the upper and lower parts of a workpiece, so that the workpiece can be automatically clamped and prevented from migrating in moving and assembly processes, and high-precision assembly of the workpiece can be realized.