To provide a lens manufacturing system in which increase of lens element forming parts to be processed is suppressed even when manufacturing a lens array with different number of lens elements as a variation of the lens array to be manufactured.

The lens manufacturing system includes a first molding die that molds a first lens mold having at least one lens element, and a second molding die in which the first lens molds can be arranged in the inner periphery and which molds a second lens mold having at least two lens elements.