Abstract:Through the analysis of English spelling errors of OCR (optical character recognition), introduce an algorithm of combination of phonetic spelling correction, OCR regulations and edit-distance method. And spelling check and spelling correction are two most important functions of the spelling correction system. In which, dictionary database verification technology is applied in the spelling check module and the edit-distance method is applied in correction process. Chooses five common printed character types to print and test the effect of the algorithm. The test shows that the recognition rate improves 2-4 percents.