The invention discloses a rotating type pouring machine for casting machining. The machine comprises a disc type worktable, a tooth disc driven by a driving mechanism is mounted on the disc type worktable, an annular groove is formed in the upper surface of the tooth disc, the interior of the annular groove is divided by partition plates into multiple modeling box storage grooves, a molten iron containing assembly is fixedly mounted on the center of the disc type worktable through a base, one side of the molten iron containing assembly is provided with a pouring assembly communicating with themolten iron containing assembly, a grabbing mechanical arm driven by a motor is fixedly mounted at the position, opposite to the pouring assembly, of the disc type worktable, during use, a motor drives a gear to rotate so as to drive the tooth disc to rotate, a modeling box is placed in the modeling box storage groove, in the rotation process of the tooth disc, when the modeling box is located below pouring heads, the pouring heads add molten iron into the modeling box one by one, after adding is finished, an air cylinder and the motor are matched, so that a fixed clamping plate and a movableclamping plate are driven to clamp the modeling box, and then, the modeling box is conveyed to the next procedure.