The author sums up the test for Optimizing the parameters of moderate longhole blasting in Hujiayu copper mine Basing on the investigation in geological struc-ture plane,the tests of ore and rock mechanics, sound wave and explosion crater, and the simulation of hole pattern parameters, the author used a great ratio between space and burllern of hole suitable for rock conditions, The test Was successful and resulted in a bet-ter economic gain The tested blasting parameters are of deploymental value.