The utility model relates to an all insulation formula generating line overlap joint high voltage insulation sleeve pipe, its structure includes the high voltage insulation sleeve pipe, has A, B, the three hole of C on the high voltage insulation sleeve pipe, and the A conductor inserts the A hole on the high voltage insulation sleeve pipe, and the B conductor inserts the B hole on the high voltage insulation sleeve pipe, and insulating screw inserts the C hole on the high voltage insulation sleeve pipe, and A conductor, B conductor are through insulating screw fastening together. The utility model discloses an advantage: 1. The requirement of two kinds of conductor lap -joint all insulations has been satisfied, 2. The production standard ization of part, secondary operation in the time of need not assembling have been realized, 3. Reduce cost, 4. Product Assembly it is convenient simple, with standard tool installation commonly used, 5. It is convenient to change.