A secure execution method for stored data, comprising: loading a security management program pre-stored in a first storage device when the first storage device is detected; executing the security management program and acquiring pre-stored encrypted identity information; transmitting the encrypted identity information to the first storage device; loading system data after the first storage device decrypts the identity information and verifies the identity information successfully, and executing an operating system according to the system data; wherein the first storage device comprises a first storage area and a second storage area, the first storage device is configured to make an externally visible space be the first storage area after starting up; and the first storage area is configured to pre-store the security management program, and return any data when a size of an external access data address is greater than a size of the first storage area; the second storage area at this moment is in a locked state and is external invisible; the second storage area is an actual externally usable storage space, and is visible and usable after unlocking; the loading the security management program pre-stored in the first storage device when the first storage device is detected comprises: loading the security management program pre-stored in the first storage area when the first storage device is detected; the secure execution method for stored data further comprises: before loading the system data after the first storage device decrypts the identity information and verifies the identity information successfully, and executing the operating system according to the system data, decrypting and verifying, by the first storage device, the encrypted identity information, and unlocking the second storage area if the encrypted identity information is verified successfully. loading a security management program pre-stored in a first storage device when the first storage device is detected; executing the security management program and acquiring pre-stored encrypted identity information; transmitting the encrypted identity information to the first storage device; loading system data after the first storage device decrypts the identity information and verifies the identity information successfully, and executing an operating system according to the system data; wherein the first storage device comprises a first storage area and a second storage area, the first storage device is configured to make an externally visible space be the first storage area after starting up; and the first storage area is configured to pre-store the security management program, and return any data when a size of an external access data address is greater than a size of the first storage area; the second storage area at this moment is in a locked state and is external invisible; the second storage area is an actual externally usable storage space, and is visible and usable after unlocking; the loading the security management program pre-stored in the first storage device when the first storage device is detected comprises: loading the security management program pre-stored in the first storage area when the first storage device is detected; the secure execution method for stored data further comprises: before loading the system data after the first storage device decrypts the identity information and verifies the identity information successfully, and executing the operating system according to the system data, decrypting and verifying, by the first storage device, the encrypted identity information, and unlocking the second storage area if the encrypted identity information is verified successfully. loading the security management program pre-stored in the first storage area when the first storage device is detected; the secure execution method for stored data further comprises: before loading the system data after the first storage device decrypts the identity information and verifies the identity information successfully, and executing the operating system according to the system data, decrypting and verifying, by the first storage device, the encrypted identity information, and unlocking the second storage area if the encrypted identity information is verified successfully. before loading the system data after the first storage device decrypts the identity information and verifies the identity information successfully, and executing the operating system according to the system data, decrypting and verifying, by the first storage device, the encrypted identity information, and unlocking the second storage area if the encrypted identity information is verified successfully.