The manufacturing technology of high power laser optical elements belongs to the typical extreme manufacturing engineering for its high precision, low defect, more outputs and less cost. In order to resolve the bottleneck of the current manufacturing, this paper introduces a cloud manufacturing service mode oriented high power laser optical elements to realize the digital engineering management within optical product life cycle, and discusses the architecture and some key techniques in this new mode. This cloud manufacturing service mode can allocate the manufacturing resources and capabilities properly, and provide a managing mechanism which is used as need and paid according to need to utilize different resource services anywhere. It is useful for the manufacture of high power laser optical elements to improve manufacturing precision, optical damage resistance threshold and production efficiency.