Abstract:In view of the current open pit mine rotary drill hole searching precisionis not high perforation work management is hard,Build a positioning base station and the mobile station to achieve precise positioning of rotary drill rig based on high precision positioning board,and install the holzer sensor to realize the hole depth monitoring Realize Remote data acquisition and auxiliary hole searching operation based on Hybrid programming technology of LabVIEW and VC .Through the practical application in the YZ-35 type rotary drill rig in a mine of Jiangxi：The system realizes the cm level precision rotary drill digital searching hole, provides technical support for improving the quality of open pit mine blasting.