The invention relates to the field of cable installation, in particular to a spool insulator street code. On the basis of reserving a street code bracket and a spool insulator in the conventional spool insulator street code, an integral parallel groove clamp is adopted, a cable passes through a through channel and then J type clamps are locked, so that a connecting plate or a clamping plate is matched with the spool insulator to clamp the cable, and thus a way of winding and binding the cable through a bundle is replaced, the cable sheath is free of damage, and the cable is firmly fixed and is difficult to fall; the J type clamps are connected together through the connecting plate, so that the advantage of convenient and flexible installation of the J type clamps is reserved, the advantage of firm cable clamping is provided, the cable can be firmly fixed on the street code whether passing linearly or bending and steering in the street code, and furthermore, the connecting plate or the clamping plate can be matched with the spool insulator to clamp the cable, and the cable layout is flexible.