The invention provides a method and device for managing a general flash memory storage array and the method comprises the steps: determining an array address pointer of a block of a UFS storage array,building an FIFO, and enabling the table entry of the FIFO to correspond to the array address pointer; when an externally input command to be executed is a write-in command, executing the write-in command; determining a target table entry of the to-be-executed file according to the size of the to-be-executed file and the current table entry pointed by the pointer register, then storing the to-be-executed file in the corresponding target block in parallel according to the corresponding target array address pointer, and storing the file identifier and each target table entry; taking a table item pointed by the pointer register after sequentially moving each target table item from the current table item as the current table item; when the externally input to-be-executed command is not the write-in command, determining each corresponding specified table item according to the specified file identifier of the specified file corresponding to the to-be-executed command, then determining the corresponding specified array address pointer, and then executing the operation corresponding to the to-be-executed command on the information in the corresponding specified block.