Abstract: In order to solving difficult problem of complex surveying environment in connection engineering between two shafts of Zhaojiazhai Colliery,applying error prediction to optimizing connection projection,applying steel line and total-station instrument to making connection surveying and transferring elevation and coordinate.Observation result showed that coordinate close error was minor than 30mm,elevation close error was 85mm,azimuth angle close error was 35″,which were minor than those in Coal Mine Measurement Regulations.The results had reference value for connection engineering between deep shafts.