Key management method, key management device, key management equipment and storage medium

The invention is applicable to the technical field of security management, and particularly discloses a key management method, a key management device, key management equipment and a storage medium. By establishing a multi-node key storage system, when key data required by an encryption and decryption service program is not in a use state, the key data is stored in the multi-node key storage system; according to the method, the key data is stored in the random nodes in the multi-node key storage system, and the key data is controlled to migrate among the nodes in the multi-node key storage system according to the preset migration rule instead of being directly stored in a memory corresponding to an encryption and decryption service program. And an attacker cannot know the storage position of the key data, so that the key data is difficult to steal through an existing attack means. And when a key calling request based on the encryption and decryption service program is received, the storage position of the key