Explosion-proof metalized film capacitor

The utility model provides an explosion-proof metalized film capacitor, which solves the problem that as capacitors are low in safety reliability, usage by users is affected. The capacitor comprises a housing, a core inside the housing and a tinplate cover covering the housing. The tinplate cover is provided with two electrode connecting terminals. The capacitor further comprises a first flame retardant wire and a second flame retardant wire which are connected to the core separately, and an explosion-proof device connected to the two electrode connecting terminals. The explosion-proof device includes capacitor wires. Each of the first and the second flame retardant wires are connected to one of the capacitor wires. When the internal pressure of the housing of the capacitor is less than a first preset value, the explosion-proof device is stationary, and the capacitor wires are connected with the first and the second flame retardant wires. When the internal pressure of the housing is greater than the first pre