The invention provides a mechanical hand capable of conveying multiple specifications embracing-hoop-skins and relates to the field of construction equipment. The mechanical hand comprises a machine frame, a cross beam, and a mechanical arm; the beam is installed on the top of the machine frame; the mechanical arm is arranged on the beam floatingly in a sleeving mode through a sliding block; the beam comprises a transverse track, a mechanical arm transverse driving air cylinder; and the extending and shrinking direction of the transverse driving air cylinder of the mechanical arm is parallel to the beam. According to the mechanical hand capable of conveying multiple specifications embracing-hoop-skins, full-automatic operation is adopted in the whole conveying process of the embracing-hoop-skins without the need for manual touching of the embracing-hoop-skins, therefore, labor intensity of workers is relieved, quality of products is greatly improved, and stability of product production is ensured.