Abstract: For problems of inaccurate drawing and poor visibility of mine LED electronic display board using vector technical to draw graphics, the paper proposed a design scheme of dot-matrix drawing software which can be applied in different types of electronic display boards, and introduced overall design and graying steps of BMP image of the software. The dot-matrix drawing software achieves functions of WYSIWYG drawing, text and dot-matrix conversion, BMP pictures import/conversion, ICO icons import/export, analog display and external common interface. Comparison result shows that both the original graphics and their actual display effects of the graphics drawn by the dot-matrix drawing software are significantly better than the graphics drawn by vector technical.