The present invention relates to a multipurpose cutting apparatus having a straight cutter and a multipurpose cutter disposed at either side of the cutting table, the cutting table is provided with two pairs of lateral slide grooves in each of received an adjusting assembly. In addition to straight cutting line, the present invention is also able to make different cutting lines by using the multipurpose cutter. The adjusting assembly is disposed at either end of the rail of the multipurpose cutter. Thereby, not only the multipurpose cutter can be adjusted flexibly, but also the multipurpose cutter can be selectively used according to needs.