The concept of green exploration is implemented in the survey work at the Longmen gold polymetallic mine in Laiyuan County, Hebei Province, where special design is carried out for trench exploration, old tunnel cleaning and drilling as per the “Green Exploration Guideline” standard. Humus soil and rubbles dug out during trenching exploration are piled and covered separately. After the project is accepted, humus soil and rubbles are backfilled, compacted and greened; the rubbles removed from the old tunnel is piled a flat place close to the tunnel, and well protected, and then covered with soil and greened; clean water and envionmental protection mud are used as the drilling fluid for drilling projects, with diamond drilling and wireline coring as the drilling process; thus improvingdrilling efficiency, reducing impact on the geological environment with less drilling rig footing, and eliminatingoil spillage during construction. After completion of the project, the landscape is reinstated through grass planting and natural restoration. Green survey implements fully the green development concept that green mountains and clean water are the gold and silver mountain.