Geometric figure plotter

The geometric figure plotter comprises a plotting plate, a sliding rail is installed on the end face of one side of the plotting plate, the outer side of the sliding rail is slidably sleeved with a scale sliding block, a size scale is installed at the top end of the scale sliding block, and scale marks are etched at the top end of the size scale. The outer side of the size scale is slidably sleeved with a transfer sliding block, an observation groove is formed in the top end of the transfer sliding block, and auxiliary drawing of geometric figures can be conducted at any position of the top of the sliding rail through cooperation between the scale sliding block and the radius sliding scale. When people draw geometric figures, various tools do not need to be used for assistance, people can improve the drawing efficiency, pens needing to be used can be inserted into the inner sides of the pen grooves, then the pen grooves are tightened, the pens are fixed, different types of pens need to be used, the pens can b