The present invention provides a dynamic write strategy modification method and apparatus. The method includes: writing data in a disc according to a plurality of presupposition write strategy data, each presupposition write strategy corresponds to a pattern combination; pauses writing and measure a quality index of a pattern combination corresponding to the written data; adjusting the presupposition write strategy of the pattern combination in order to generate a plurality of modified write strategies according to the writing quality indexes; and writing the corresponding pattern combination with the modified write strategy. Compared with the related art, the dynamic write strategy modification methods of the invention modify the pattern dependent parameters according to a measuring result of short pattern combination (at least larger than 3 T, when applied in blue-laser optical recording is to 2T), and the pattern independent parameters (e.g. write power), hence, the data writing quality can be increased well. |