The invention belongs to the technical field of pulse power and relates to a helix pulse forming line and a manufacturing method thereof. The helix pulse forming line comprises an insulating base cylinder and a plurality of helix lines spirally wound on the insulating base cylinder, and is characterized by further comprising helix line harness restraint rings which are two thin-walled metal rings respectively mounted at the two ends of the insulating base cylinder, wherein a plurality of restraint hole sets are formed in each helix line harness restraint ring in the axial direction; each restraint hole set comprises a plurality of restraint holes formed in the circumferential direction; the hole distance between every two adjacent restraint holes is larger than the line diameter of each helix line; the two ends of the helix lines are respectively fixed on the restraint holes of the helix line harness restraint rings at the two ends of the insulating base cylinder in a soldering manner. By adoption of the helix pulse forming line, the problems that a conventional broadband wire has high probability of breakdown between the adjacent turns and is large in wave transmission distortion are solved.