The embodiment of the invention discloses a file processing control method and device and a mobile terminal. The file processing control method comprises the steps that when a preset category processing operation executed on files is detected, the number of the processed files indicated by the processing operation is determined; when it is determined that the number of the files is larger than or equal to a preset number, identity authentication information of a current user of the terminal is obtained; if it is determined that the identity authentication information of the current user is not matched with preset identity authentication information, the processing operation is stopped. Accordingly, when it is detected that the terminal initializes the preset category batched processing operation on the files, identity authentication can be performed on the user at first. If the user identity authentication is not passed, the terminal can stop batched processing operation on the files, so that the files of the terminal can be effectively prevented from being processed illegally, and in other words, the terminal file security is improved.