The effective treatment of the‘il1-state' is a key to the design of the program of adaptive optical automatic design. The paper proposes a new idea and method about it. The so-called‘three link-closed chain-circulating treating method' has been put forward here. The treating method consists of reducing iteration step，regulating the rate between the increments of variables，and releasing control1ed aberration. This is much better than the tradtional treatment setup.