The invention discloses a screw pump driving rod and a screw pump system and belongs to the field of petroleum equipment. The screw pump driving rod comprises an upper joint, at least two connecting assemblies and a lower joint which are connected sequentially end to end and are rod-like; a tail connecting part is arranged at one end of the upper joint, and a head connecting part is arranged at one end of the lower joint; a head connecting part with the same structure as the head connecting part is arranged at one end of each connecting assembly, and a tail connecting part with the same structure as the tail connecting part is arranged at the other end of each connecting assembly. Through cooperation of the head connecting parts and the tail connecting parts, the upper joint, the at leasttwo connecting assemblies and the lower joint are connected sequentially end to end. The problem that the screw pump driving rod still bears higher alternating load during rotation in related art is solved, and the effect of reducing alternating load borne by the screw pump driving rod is achieved.