The present invention discloses an integrated insulating protecting cover covering both a cement rod body and a single cross arm. The integrated insulating protecting cover comprises an electric rod body covering part (1) and a cross arm covering part (2) that are made of insulating rubber. The electric rod body covering part (1) comprises an upper electric rod body covering part and a lower electric rod body covering part, a rod body and a covering part at the connection part of the cross arm, and is a cylinder formed by rectangular insulating rubber boards. The cross arm covering part (2) is formed by inverted L-shaped left and right cross arm covering parts. A lapping part is provided with a magic tape lapping two sides of the lapping part. Left and right covering connection parts are connected with a groove of a connecting part covering part (13) of the rod body and the cross arm. The connection part of the left and right covering connection parts and the electric rod body covering part (1) is provided with a chamfered edge. The left and right cross arm covering parts are folded upward so as to seal an opening (5). The integrated insulating protecting cover has a simple structure, is safe, stable and reliable, is flexible in adjustment, can be widely used, improves efficiency of hot-line work, ensures security of the hot-wire work, improves insulation covering efficiency, and reduces labor intensity.