The invention discloses a self-outage type non-explosive capacitor compact in structure comprises an outer shell, a core body, a sealing cover which is matched with the outer shell and encapsulates the core body inside the outer shell as well as a first lead and a second lead, wherein the first lead passes through the sealing cover and extends to one side of a first electrode mast, the second leadpasses through the sealing cover and is fixed with a second electrode mast, a first sliding chute and a second sliding chute are formed in the side wall of the first lead, the first sliding chute islocated at one side, close to the sealing cover, of the second sliding chute, the first sliding chute is communicated with the second sliding chute, and an insulating layer is arranged inside the first sliding chute; and the first electrode mast comprises a basic part and an expansion part, the expansion part is made from a conductive thermal expansive material, an electric contact is arranged onthe side wall of the expansion part, and one end, far away from the expansion part, of the electric contact is inserted into the first sliding chute and is in sliding fit with the first sliding chute.The self-outage type non-explosive capacitor compact in structure effectively avoids a phenomenon that the capacitor bursts, and use safety of the self-outage type non-explosive capacitor is improved.