The utility model discloses a super capacitor sealing port, which comprises a capacitor barrel shell and end covers arranged at two ends of the capacitor barrel shell, wherein each end cover is provided with a sealing groove, the sealing groove is internally provided with a sealing circle, and the capacitor barrel shell is provided with a locking part matched with the end cover and a sealing part matched with the sealing circle. The super capacitor sealing port has the beneficial effects that as the locking part matched with the end cover is arranged on the capacitor barrel shell, the end covers are tightly clamped on the capacitor shell, the sealing groove and the first sealing circle are arranged on the end cover, and the sealing part matched with the sealing circle is arranged on the capacitor barrel shell, sealing between the capacitor barrel shell and the end covers is realized, a traditional welding connection mode is replaced through the above structure, the production efficiency is improved, and the production cost is reduced.