The invention discloses an insulating shielding cover for 10kV cable lead wire live-line lapping. The insulating shielding cover comprises an insulating cover body and an insulating base plate. The insulating cover body comprises a front side board, a left side board, a right side board, a top board and an insulating boss. The front side board, the left side board, the right side board and the top board are connected successively and form a box structure with an open lower end and an open back end. The insulating boss is fixed on the back end of the top board. The insulating base plate is arranged in perpendicular. An insulating boss insertion interface is arranged on the insulating base plate. The insulating boss is inserted into the insulating boss insertion interface. The back end opening of the insulating cover body is pasted on the front surface of the insulating base plate. Two handrail holes are formed in the insulating base plate. Upward grooves are respectively formed in the bottom end of the insulating base plate and the bottom of the front side board of the insulating cover body, and the two grooves are opposite to each other. According to the invention, the insulating shielding cover for 10kV cable lead wire live-line lapping has the advantages that the insulation is good, the installation and the operation are convenient, the weight is light, the transportation is easy, the reliability is high, the efficiency is high and the safety is good.