The invention discloses a text coherence editing method. The method comprises a specific word library loading module, a specific word customizing module, a specific word storage module, a candidate specific word list construction module and a candidate specific word display module, wherein when a user starts to edit a text, the specific word library loading module is responsible for loading a specific word library; the user customizes specific words by utilizing the specific word customizing module when editing the text; the specific words customized by the user is stored by utilizing the specific word storage module; and the candidate specific word list construction module searches in the specific word library according to current input character string and constructs a candidate specific word list. and the candidate specific word display module lists the candidate specific word list, and helps the user to determine whether the current edited character string is a customized specificword or not, so that the coherence of the specific words input by the user before and after is maintained.