The embodiment of the invention discloses a key instruction processing method. The method is applied to a terminal. A fingerprint sensor and a pressure sensor are arranged in a key of the terminal. The method comprises the following steps of: acquiring fingerprint information through the fingerprint sensor in the key while inducing touch operation of a user for the key, and simultaneously, detecting a pressure value through the pressure sensor in the key; judging whether pre-set conditions are satisfied or not, wherein the pre-set conditions are as follows: the acquired fingerprint information is matched with pre-set fingerprint information; and the detected pressure value is greater than a pre-set pressure threshold value; and, if the pre-set conditions are satisfied, executing operation corresponding to the key. Correspondingly, the embodiment of the invention further discloses the terminal. By adopting the embodiment of the invention, the key can be prevented from being operated maliciously.