The invention discloses a connecting rod type mold closing type injection mold. The connecting rod type mold closing type injection mold comprises a fixed base, a sliding base, guiding rods, fixing blocks, a front mold, connecting blocks, a back mold, a pouring gate, a first air cylinder, a movable block, a first connecting rod, second connecting rods, third connecting rods, a second air cylinder,a first piston rod, an air inflator, a cushion plate, reinforcing rib plates, a cutter, a vacuum pump, a first connecting pipe, a straight pipe, an oil tank, an oil pump, an oil pipe, a three-way pipe, second connecting pipes, an oil filling port, a groove, an annular pipe, sponge rings, a circular hole, a spring, a piston rod, a limiting groove, a limiting ring, a second piston rod and a piston.According to the connecting rod type mold closing type injection mold, the structure is reasonable, a cutting structure is arranged, therefore, when the front mold and the back mold are separated, excess materials at the pouring gate can be automatically cut by means of force generated when the front mold and the back mold are separated, the subsequent machining process of injection molding partsis reduced, and the machining efficiency is improved.