Abstract: This theme studies the influence factors for blasting design proposals and blasting parameters in the open air quarry,such as minimum resist line,explosive filling structure,blockage length,the rock characteristics in blasting areas,the break up effect to rocks caused by the gas come from blasting,etc.This theme from above various aspects to study the influence factors for blasting technical controlled by tiny differences in the open air quarry.Through doing production tests,we improve the blasting results,decrease the comprehensive cost for quarry and then get more obvious results,which can be considered as reference experience for the same type quarry.