Field processing die for circular reinforcement cage

The utility model relates to a field processing die for a circular reinforcement cage. The field processing die comprises a lower base and an upper support frame; the upper surface of the lower base is a concave downward arc surface; the upper surface of the upper support frame is a convex upward arc surface; the concave downward arc surface and the convex upward arc surface are independent mutually, but need to be combined for use. The field processing die can be used for mounting main reinforcements and reinforced stirrups in place in a placement manner, has the beneficial effects of high construction efficiency and precision compared with the prior art adopting a structure that reinforcements can be mounted in place and temporarily fixed only by manually inserting the reinforcements, and is especially applicable to site construction of the circular reinforcement cage in which reinforced stirrups are positioned at the inner sides of the main reinforcements.