Green geological exploration is an inevitable trend for geological prospecting in Qinghai Province and even in China. It is necessary to understand the influence scope and form of geological exploration engineering on environment for green geological exploration; on this basis, a variety of advanced exploration technologies can be combined to minimize the degree of disturbed surface ecological environment to realize geological prospecting in pre investigation and survey stages. Environment-friendly flushing fluid, shallow sampling, shallow hole drilling with portable drilling equipment, deep drilling with heavy drilling equipment and multi-branch directional sampling drilling are involved, and by means of comprehensive collating data, 3D modeling method is explored to carry out green geological exploration.