OSD control module and its OSD menu color setting method

The invention discloses an OSD control module, which comprises a central processing unit, an OSD menu data memory cell and an OSD control program memory cell. The data of a palette is stored in the OSD menu data memory cell. The central processing unit executes the program which is stored in the OSD control program memory cell to process the data in the OSD menu data memory cell to generate menu graphic data on a screen. The data of the palette includes component values of each color in red, green and blue which are three primary colors. The OSD control program memory cell stores instructionswith component values of each color in red, green, and blue in a transposing palette. When executing the instruction, the central processing unit can transpose component values of each color in red, green and blue which are three primary colors in the palette so that a new palette is generated thereby. The OSD control module provided by the invention allows an OSD menu displayed on the screen to present diversified colors