The utility model relates to a detonation pressure formula line ball pincers for conductor compression jointing. Including the device body that has hollow structure, the one end of device body is provided with the line ball mould, the line ball mould puts up and puts up the supplementary line ball frame of articulated with the line ball including the line ball that sets up in device body one end,be provided with the cover half utensil in the supplementary line ball frame, be provided with in the line ball frame and possess matched with movable mould utensil with the cover half, the one end that the cover half utensil was kept away from to the movable mould utensil is provided with the line ball ejector pin, the line ball ejector pin stretches into in the cavity of device body, it is usedfor driving the actuating mechanism that the line ball ejector pin removed still to be provided with in the cavity of device body, actuating mechanism is used for placing shooting pill's the cartridgechamber body and sets up the piston rod between the cartridge chamber body and line ball ejector pin including setting up in the device body, the piston rod is the design of T style of calligraphy, the piston rod was kept away from to the cartridge chamber body one end is provided with firing pin mechanism and is used for driving the firing mechanism of firing pin mechanism, the device still be provided with on the body with the communicating pressure release hole of cavity.