Drawing ruler assisting in line drawing

The invention belongs to the technical field of drawing tools, particularly relates to a drawing ruler for assisting in drawing lines, and aims to solve the problems that the conventional technical scheme is poor in functionality and can only be used for drawing straight lines during actual use, so that the conventional technical scheme is not convenient during actual drawing. An anti-skid pad is fixedly mounted at the bottom of the basic ruler, a clamping assembly is connected to the top of the basic ruler, an adjusting assembly is connected to the bottom of the basic ruler, a reference ruler is connected to the adjusting assembly, a sliding rail is fixedly mounted on the front side of the reference ruler, a moving plate is slidably connected to the sliding rail, and a horizontal ruler is fixedly mounted on the right side of the moving plate; after being fixed on a drawing workbench to press and position a drawing, the drawing assisting device can assist a drawing pencil in drawing a horizontal straight line