Abstract: A video coding/decoding buffering apparatus and a buffering method thereof are provided. The method codes/decodes a current macro block to generate a corresponding unfiltered current macro block data, and a right data area and a bottom data area of the unfiltered current macro block data are stored. The unfiltered current macro block data is filtered to generate a filtered current macro block data, and a right data area and a bottom data area of the filtered current macro block data are stored. The stored data areas are used to code/decode the associated macro blocks.