The utility model relates to an energy storage capacitor group is refered in particular to in the impulse current field, the condenser of being qualified for the next round of competitions including the single sleeve pipe of a plurality of adoptions, one of condenser is extremely drawn forth with the case shell facies insulatingly through the sleeve pipe, be called for short the sleeve pipe utmost point, another utmost point of condenser is drawn forth after being connected with the case shell, is called for short the case shell extremely, two -layer arranging about the condenser is divided into is fan -shaped or semi -circular symmetric distribution, and the sleeve pipe of the upper condenser utmost point links to each other with the copper no. 1 that converges through the copper bar, and the sleeve pipe utmost point of lower floor's condenser links to each other with the copper no. 3 that converges through the copper bar, and the case shell utmost point of upper and lower two -layer condenser is connected through the copper bar earlier in the centre, links to each other with the copper no. 2 that converges again, and the copper no. 1 that converges, converge copper no. 2 and the copper that converges link to each other through the vase between three. After adopting above -mentioned scheme, can according to actual need adjustable capacitance, decision impulse current's amplitude and frequency.