Command scheduling method, flash memory controller, flash memory device and storage medium

The embodiment of the invention relates to the field of storage device application, and discloses a command scheduling method, a flash memory controller, flash memory equipment and a storage medium, the method is applied to the flash memory controller, the flash memory controller comprises a high-priority first-in first-out queue and a low-priority first-in first-out queue, the low-priority first-in first-out queue is used for storing write commands, and the write commands are sent to the flash memory controller. The command scheduling method comprises the steps that a read command is obtained, the read command is issued to a high-priority first-in first-out queue, and the read command comprises at least one instruction; each instruction in the high priority first in first out queue is executed. A write command is stored through a low-priority first-in-first-out queue, an obtained read command is issued to a high-priority first-in-first-out queue, and each instruction in the high-priority first-in-first-out q