The invention discloses a method for preventing malicious charge deduction. The method comprises the steps that first verification information which is inputted aiming at an identity verification interface on a terminal is received; when a first user identification corresponding to the first verification information is determined as a limited user, whether malicious charge deduction operation corresponding to the first user identification exists on the terminal or not is detected; if the malicious charge deduction operation corresponding to the first user identification exists on the terminal, the malicious charge deduction operation is prevented. Correspondingly, the invention further provides a device for preventing malicious charge deduction. By the adoption of the method and device for preventing malicious charge deduction, malicious charge deduction triggered by the limited user can be prevented, and the function of the terminal is improved.