The utility model relates to a cladding insulating electrode for electrostatic coalescence ware, insulating electrode subassembly, sealing end cover, lower sealing end cover and high voltage insulation terminal including the tube -shape, peg graft in sealing end cover's bottom in insulating electrode subassembly upper end, its lower extreme is pegged graft at lower sealing end cover's top, open at the sealing end cover top has the mounting hole, and this mounting hole downwardly extending extremely insulating electrode subassembly's upper end position department, the lower extreme of high voltage insulation terminal is installed in the mounting hole, high -voltage cable passes high voltage insulation terminal and electric connection insulating electrode subassembly. The advantage: simple structure, convenient to use, the electric field that this electrode produced is stable, and electric field breakdown strength is better, has excellent corrosion resistance and insulating nature, can avoid taking place the short circuit between the electrode, guarantees high voltage electrode job stabilization, in addition, has improved the impedance between high voltage electrode and telluric electricity field, has reduced conduction current, has also reduced the equipment energy consumption.