A typing error correction method and a device implementing the same method are provided. A correction method includes the following: every time when a user inputs characters, a correlation between the newly input characters and the character substrings of the already input words having the same length as the newly input characters is calculated; in case the correlation exceeds a predetermined value, such character substring of already input word is registered in a correction candidate list; in case there is only one correction candidate in the list, the candidate substring in the list is replaced by the newly input characters according to correction command; in case there are more than one correction candidates in the list, a user's move command is input for selection, and the selected candidate substring is replaced by the newly input characters.