Abstract: According to the res stance spectrumn of coal and rock cuting resistance spectrum with the cuters of the coal plough as well as the cuting mechanism,the cuttingres sanceof the plough head breaking the coal and rock was dentifed. Based on thecuting resistance of a single plough cutte,the cutting law of the ploughcuter and operation parameters prowided,the instantaneous cuting resistance method of the plough head was detemined,the cuttig es itance test and theoretical compreh ensive model of the plough head was esablis ed and the agorithm of th cuting resistance model was provided.The resuis showed that when the impendenceof the coal and rock was 225 N / cm,the caving angle was 30° and the number of the plough cutters was 14,the ploughing resistance of the plough head would reach96.86 k N in max and the variation coeficient would be 0.509 53 in min.Aload fuctuation would be less and would be favorablefor th plough head to plough thecal Tne theoretical analysis and the testresults wer fited bascall: The cuting resistance features and value all .ould have a god compostion and the test of single plough cutter could reflect the internal law of the coal and rock breaking.