Read and write control method and system of storage device data

The invention is applied to the technical field of data storage, providing a read and write control method and system of storage device data. The read and write control method comprises the following steps: receiving an operation command sent by a host end, and the operation command contains logic address of read and write operation; converting the logic address of the read and write operation to a physical address according to the corresponding relation between the logic address and the physical address; judging a storage area in which the converted physical address is positioned, wherein the storage area comprises a private data storage area and a logic storage area; when the converted physical address is positioned in the private data storage area, controlling to refuse to execute the operation command sent by the host end; and when the converted physical address is positioned in the logic storage area, controlling to execute the operation command sent by the host end. In the embodiment of the invention, t