In order to ensure the smooth mining of 10-201 working face in Mugua Mine, according to the penetration measurement technology, 15″ level mining area control conductor measurement standard was adopted, combined with the characteristics of the working face and measurement standard, underground conductor and elevation measurement operation was carried out, based on the results of penetration measurement to derive 15″ level mining area latitude and longitude instrument closure check results table. The accuracy evaluation analysis showed that the deviation of the left and right of the centerline direction was 0.033 m, which was less than the allowable deviation of ±0.3 m, which ensured the smooth mining of the workface. penetration measurement;