The invention discloses a supercapacitor with a comprehensive shakeproof effect. A mutually-embedded assembly structure is adopted between a cathode current collector and a roll core of the supercapacitor, and a top cover is sealed by an integral damping seal structure. In the mutually-embedded assembly structure, a body of the cathode current collector is provided with more than two through holes, at least one bent portion forming a certain included angle with the plane of the body is arranged at the edge of each through hole, and each bent portion can be embedded in the roll core by a certain depth; the integral damping seal structure is composed of the top cover and a damping seal ring, a mounting flange is arranged on the peripheral wall of the top cover, a [-shaped groove used for accommodating the mounting flange of the top cover is arranged in the inner side of the damping seal ring, and three edges of the [-shaped groove form an isolation portion playing a role in damping, a seal portion and a damping portion respectively. The technical effect of mutual reinforcement in two directions is realized.