A new technique for fabricating continuous relief micro optics elements (MOEs) has been developed. At first, the binary pattern on the object plane is transformed into continuous grey image on the recording plate by using the exposure system with movable object plane. And then the silve image is in term transformed into harden laten image by using silve halide gelatin processing procedure. Finally, this laten image is developed by enzyme treating. The principle analysis and experimental demonstration are described as well in this paper.