The invention discloses storage battery large-plate grid casting equipment. The storage battery large-plate grid casting equipment comprises a casting plate and a casting plate auxiliary machine; a casting plate host is used for casting and moulding a battery plate grid; the casting plate auxiliary machine comprises a vertical shearing mechanism used for shearing a casting head of the vertically placed plate grid, a plate grid turning device used for driving the sheared plate grid from a vertical state to a horizontal state by overturning, and a truss manipulator assembly which is crossed between the casting plate host and the vertical shearing mechanism and used for casting and moulding the casting plate host and vertically hoisting the plate grid mould by the casting plate host to the vertical shearing mechanism. The equipment can reduce the machinery damage at each link during plate grid manufacture as possible, and plate grid deformation can be controlled.