Annular circulation water path of optical mold

The invention relates to the technical field of an optical mold, and discloses an annular circulation water path of an optical mold. The annular circulation water path of the optical mold comprises a mold body, wherein a mold core hole group is arranged in the mold body, and is formed by a plurality of annularly formed unit mold core holes; an outer annular water path and an inner annular water path are also arranged in the mold body; the outer annular water path is arranged on the outer periphery of the mold core hole group; one side, near the mold body, of the annular water path is broken for forming two outer ring interfaces; the two outer ring interfaces respectively extend towards the corresponding side surface of the mold body and are respectively communicated with the outside for forming an outer ring flow passage; the inner annular water path is arranged on the inner periphery of the mold core hole group; one part of the inner ring water path is broken for forming inner ring interfaces; the two inner ring interfaces extend towards the bottom surface of the mold body and are respectively communicated with the outside for forming an inner ring flow passage. The annular circulation water path has the advantages that the temperature difference of each part of the mold around the mold core of the mold is less than 1 DEG C; the mold temperature balance performance of the water path system of the mold is effectively improved, the stress of each part of the product is improved, and the qualification product rate of the product forming is improved.