The invention discloses an auxiliary tool for mathematics teaching drawing, and relates to the technical field of teaching tools. The auxiliary tool for mathematics teaching drawing comprises a fixedplate. A movable groove is fixedly connected to the front of the fixed plate. A transparent plate is fixedly connected to the top of the movable groove. A mounting plate is fixedly connected between two sides of the inner wall of the movable groove. One side of the top of the mounting plate is slidably connected with an extrusion block. The bottom of the extrusion block is fixedly connected with asliding plate, and the bottom of the sliding plate penetrates through the mounting plate and extends to the bottom of the mounting plate. According to the auxiliary tool for mathematics teaching drawing, a coordinate board can be well moved to the side of a formula, a one-to-one correspondence relation can be formed between the formula and a drawing, teachers can conveniently explain, and students can conveniently understand, so that the teaching quality is greatly improved; and through the arrangement of the coordinate board, coordinate indication can be well performed, the drawing of the teacher is convenient, the drawing effect is improved, and the drawing accuracy is further greatly improved.