Abstract: For cutting, stripping and gripping three-phase cable connectors, a multipurpose pliers comprising two pivoted handles, a shearing blade fastened in either handle, two insulation-stripping cutters fastened in said two pivoted handles respectively, a pressure plate controlled by said two pivoted handles to move in a frame, a folding connection and two torsion springs fastened in said two pivoted handles between said clamping device to control the relative rotation of said two pivoted handles, wherein said frame has three holes in different size for inserting different cable connectors; said pressure plate has three teeth in different size driven by the two pivoted handles to respectively insert toward the three holes in said frame for gripping operation.