The invention provides a parallel groove clamp for a charged stand-by false lead. The parallel groove clamp is characterized by comprising a wire clamping plate, an upper clamping plate, a lower clamping plate and bolts, wherein an arc-shaped hook structure is arranged at one end of the wire clamping plate and a flat plate structure with one groove is arranged at other end; the upper clamping plate with a V-shaped block structure is butted with the arc-shaped hook structure of the wire clamping plate through one bolt and a guide wire is arranged in the middle of the upper clamping plate and the arc-shaped hook structure; the lower clamping plate is fixed in the groove of the wire clamping plate through the bolts and the other guide wire is arranged in the groove; and the lower clamping plate is of the flat plate structure or a plate-like structure with a V-shaped groove. The parallel groove clamp has the advantages that the contact surfaces of the guide wires are increased, the application effect of the stand-by false lead is improved and the problem of overheating of the guide wires is solved.