Hydrogeological comprehensive exploration method and exploration system for underground reservoir

The invention discloses a hydrogeological comprehensive exploration method and system for an underground reservoir. The system comprises a plurality of exploration probes arranged in exploration holes, an analysis system and auxiliary equipment used for installing the detection probes. The auxiliary equipment comprises a lining hole straightening mechanism coaxially installed in an upper hole opening of a surveying hole and a probe installation protection cage penetrating through the lining hole straightening mechanism and entering the surveying hole, the probe installation protection cage comprises a plurality of fixing cages coaxially connected in series and welded, probe fixing bases are arranged in the fixing cages, and surveying probes are fixed to the probe fixing bases. The problem of inaccurate survey data in the prior art is solved, through the arrangement of the probe installation protection cage, the survey probe is fixed, meanwhile, the hydrological environment in a survey hole and a survey well i