False deletion preventing method and system for electronic device file

The invention discloses a false deletion preventing method and system for an electronic device file. The method comprises the steps of judging whether a to-be-deleted file is a junk file or not; if yes, directly deleting the to-be-deleted file; and if not, storing the to-be-deleted file in a preset cache region. According to the technical scheme provided by the method and system, by judging whether the to-be-deleted file is the junk file or not, the junk file is directly deleted and a non junk file is cached in the preset cache region, so that a serious result caused to a user due to loss of an important file caused by misoperation performed on a stored file carelessly by the user or others in a using process can be effectively prevented and the user experience is improved.