A memory address management method, a memory controller, and a memory storage device are provided. The memory address management method includes: obtaining memory information of a rewritable non-volatile memory module and formatting logical addresses according to the memory information to establish a file system, such that an allocation unit of the file system includes a lower logical programming unit and an upper logical programming unit. Here, the memory information includes a programming sequence, the allocation unit starts with the lower logical programming unit and ends with the upper logical programming unit, and an initial logical address of a data region in the file system belongs to the lower logical programming unit. Accordingly, an access bandwidth of the memory storage device is expanded.