This paper proposes a scrolling display method for submarine geomorphologic map based on multi-core architecture. Focusing on the slow display speed of high-resolution submarine geomorphologic map, this paper decomposes the display of submarine geomorphologic map into data reading and data display and performs the two tasks, among which the memory mapping method in parallel is used in the data reading task to further improve the data reading speed, and the data parallel algorithm is used in the data display task to display images in blocks. The experimental results show that the scrolling display speed of the image can be increased by 2.4 times than that of the conventional algorithm when the designed method is used in 4-core processor.