Abstract: The Optical Character Recognition System of Futan 789 model has been developed for a special demand. The aim of the system is to recognize the alphabet and some special marks which have been machine-printed on certain document papers. The researching target of the system is that under the recognition speed of 100 characters per second both the sabstitution rate and reject rate approaches to 10-4 (including the black/red colour recognition substitution rate). Because of the lower case alphabet the system is to recognize and automatically continuously printing in the document-making process, the printing quality varies a great deal. So we are confronted with a difficult situation in the aspeet of character reeognizability. This paper will deeribe the developing process of the system and how to select the scheme. Basing on it, a two-stage recognition scheme with the combination of hard ware and soft ware will be set forth. Finally this paper will present the experimental results and the orientation of its improvement.