Control method for sawing machine to cut hard material

The invention relates to a control method for a sawing machine to cut a hard material. The control method for the sawing machine to cut the hard material is characterized in that: the sawing parameter of a sawing machine is sampled at the state of a continuous reciprocative cutting mode; if the parameter value is within a rated value, the continuous reciprocative cutting mode is kept; if the parameter value exceeds the rated value, the cutting mode can be set as a slow cutting mode by a control unit; the sawing parameter of the sawing machine is sampled at the state of slow cutting; if the parameter value is kept at the rated value, the slow cutting mode is kept; and if the parameter value is smaller than the rated value, the cutting mode can be set as the continuous reciprocative cutting mode by the control unit. The control method for the sawing machine to cut the hard material has the advantages that the sawing machine can be regulated at real time; when the control method for the sawing machine to cut the