Control method of full-life periodical processing precision of mould

The invention discloses a control method of full-life periodical processing precision of a mould, and relates to a processing control method of the mould. The control method comprises the following steps of: S1, designing a three-dimensional CAD (Computer-Aided Design) mode of the mould; S2, manufacturing a Styrofoam mode; S3, acquiring the curved surface data of the Styrofoam mode; S4, comparing with the three-dimensional CAD mode of the mould cast piece to judge whether the size is out of tolerance; S5, acquiring the curved surface data of the cast piece; S6, comparing with the three-dimensional CAD mode of the mould to judge whether the size is out of tolerance; S7, acquiring the mechanical processing curved surface data; S8, comparing with the three-dimensional CAD mode of the mould to determine the processing position and the processing quantity of a tongman; S9, acquiring the curved surface data of the mould; S10, comparing with the three-dimensional CAD mode of the mould to provide the design experienc